CVE-2026-25997

FreeRDP is a client implementation of the Remote Desktop Protocol (RDP) that follows Microsoft's open specifications. This package provides the client applications xfreerdp.

Security Fix(es):

A malicious server can trigger a client-side heap buffer overflow, causing a crash (DoS) and potential heap corruption with code-execution risk depending on allocator behavior and surrounding heap layout.(CVE-2026-22852)

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.20.1, a heap out-of-bounds read occurs in the smartcard SetAttrib path when the cbAttrLen parameter does not match the actual NDR (Network Data Representation) buffer length. An attacker could potentially exploit this vulnerability to read sensitive information from process memory or cause the application to crash.(CVE-2026-22855)

A malicious server can trigger a client-side use after free, causing a crash (DoS) and potential heap corruption with code-execution risk depending on allocator behavior and surrounding heap layout.(CVE-2026-22856)

A malicious server can trigger a client-side heap buffer overflow, causing a crash (DoS) and potential heap corruption with code-execution risk depending on allocator behavior and surrounding heap layout. The vulnerability exists in the irp_thread_func function.(CVE-2026-22857)

A malicious server can trigger a client‑side heap buffer overflow, causing a crash (DoS) and potential heap corruption with code‑execution risk depending on allocator behavior and surrounding heap layout.(CVE-2026-22859)

A heap-based buffer overflow vulnerability exists in FreeRDP within the planar_decompress_plane_rle function, which may lead to memory corruption and arbitrary code execution.(CVE-2026-23530)

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP). Prior to version 3.21.0, a heap buffer overflow vulnerability existed in the ClearCodec component. Specifically, when glyphData is present, the clear_decompress function calls freerdp_image_copy_no_overlap without validating the destination rectangle. This allows for out-of-bounds read/write operations when processing crafted RDPGFX surface updates. A malicious server can exploit this to trigger a client-side heap buffer overflow, causing a crash (Denial of Service) and potential heap corruption. Depending on allocator behavior and surrounding heap layout, there is a risk of arbitrary code execution.(CVE-2026-23531)

A heap-buffer-overflow vulnerability exists in FreeRDP software that could allow an attacker to execute arbitrary code or cause denial of service on affected systems. This vulnerability affects the gdi_SurfaceToSurface function and is present in versions 3.20.2 and earlier.(CVE-2026-23532)

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, a client-side heap buffer overflow vulnerability exists in the RDPGFX ClearCodec decode path, specifically in the clear_decompress_residual_data function. When processing maliciously crafted residual data, out-of-bounds writes occur during color output. A malicious server can exploit this to trigger a client-side heap buffer overflow, causing a crash (Denial of Service) and potential heap corruption. Depending on allocator behavior and surrounding heap layout, there is a risk of arbitrary code execution.(CVE-2026-23533)

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP). Prior to version 3.21.0, a client-side heap buffer overflow vulnerability exists in the ClearCodec bands decode path. When a malicious server sends crafted band coordinates, it allows writes past the end of the destination surface buffer. This can be exploited to trigger a client-side heap buffer overflow, causing a crash (Denial of Service) and potentially leading to heap corruption with the risk of arbitrary code execution, depending on allocator behavior and surrounding heap layout.(CVE-2026-23534)

FreeRDP is a free implementation of the…

FreeRDP is a client implementation of the Remote Desktop Protocol (RDP) that follows Microsoft's open specifications. This package provides the client applications xfreerdp.

Security Fix(es):

A malicious server can trigger a client-side heap buffer overflow, causing a crash (DoS) and potential heap corruption with code-execution risk depending on allocator behavior and surrounding heap layout.(CVE-2026-22852)

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.20.1, a heap out-of-bounds read occurs in the smartcard SetAttrib path when the cbAttrLen parameter does not match the actual NDR (Network Data Representation) buffer length. An attacker could potentially exploit this vulnerability to read sensitive information from process memory or cause the application to crash.(CVE-2026-22855)

A malicious server can trigger a client-side use after free, causing a crash (DoS) and potential heap corruption with code-execution risk depending on allocator behavior and surrounding heap layout.(CVE-2026-22856)

A malicious server can trigger a client-side heap buffer overflow, causing a crash (DoS) and potential heap corruption with code-execution risk depending on allocator behavior and surrounding heap layout. The vulnerability exists in the irp_thread_func function.(CVE-2026-22857)

A malicious server can trigger a client‑side heap buffer overflow, causing a crash (DoS) and potential heap corruption with code‑execution risk depending on allocator behavior and surrounding heap layout.(CVE-2026-22859)

A heap-based buffer overflow vulnerability exists in FreeRDP within the planar_decompress_plane_rle function, which may lead to memory corruption and arbitrary code execution.(CVE-2026-23530)

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP). Prior to version 3.21.0, a heap buffer overflow vulnerability existed in the ClearCodec component. Specifically, when glyphData is present, the clear_decompress function calls freerdp_image_copy_no_overlap without validating the destination rectangle. This allows for out-of-bounds read/write operations when processing crafted RDPGFX surface updates. A malicious server can exploit this to trigger a client-side heap buffer overflow, causing a crash (Denial of Service) and potential heap corruption. Depending on allocator behavior and surrounding heap layout, there is a risk of arbitrary code execution.(CVE-2026-23531)

A heap-buffer-overflow vulnerability exists in FreeRDP software that could allow an attacker to execute arbitrary code or cause denial of service on affected systems. This vulnerability affects the gdi_SurfaceToSurface function and is present in versions 3.20.2 and earlier.(CVE-2026-23532)

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, a client-side heap buffer overflow vulnerability exists in the RDPGFX ClearCodec decode path, specifically in the clear_decompress_residual_data function. When processing maliciously crafted residual data, out-of-bounds writes occur during color output. A malicious server can exploit this to trigger a client-side heap buffer overflow, causing a crash (Denial of Service) and potential heap corruption. Depending on allocator behavior and surrounding heap layout, there is a risk of arbitrary code execution.(CVE-2026-23533)

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP). Prior to version 3.21.0, a client-side heap buffer overflow vulnerability exists in the ClearCodec bands decode path. When a malicious server sends crafted band coordinates, it allows writes past the end of the destination surface buffer. This can be exploited to trigger a client-side heap buffer overflow, causing a crash (Denial of Service) and potentially leading to heap corruption with the risk of arbitrary code execution, depending on allocator behavior and surrounding heap layout.(CVE-2026-23534)

FreeRDP is a free implementation of the…

FreeRDP is a client implementation of the Remote Desktop Protocol (RDP) that follows Microsoft's open specifications. This package provides the client applications xfreerdp.

Security Fix(es):

A malicious server can trigger a client-side heap buffer overflow, causing a crash (DoS) and potential heap corruption with code-execution risk depending on allocator behavior and surrounding heap layout.(CVE-2026-22852)

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.20.1, a heap out-of-bounds read occurs in the smartcard SetAttrib path when the cbAttrLen parameter does not match the actual NDR (Network Data Representation) buffer length. An attacker could potentially exploit this vulnerability to read sensitive information from process memory or cause the application to crash.(CVE-2026-22855)

A malicious server can trigger a client-side use after free, causing a crash (DoS) and potential heap corruption with code-execution risk depending on allocator behavior and surrounding heap layout.(CVE-2026-22856)

A malicious server can trigger a client-side heap buffer overflow, causing a crash (DoS) and potential heap corruption with code-execution risk depending on allocator behavior and surrounding heap layout. The vulnerability exists in the irp_thread_func function.(CVE-2026-22857)

A malicious server can trigger a client‑side heap buffer overflow, causing a crash (DoS) and potential heap corruption with code‑execution risk depending on allocator behavior and surrounding heap layout.(CVE-2026-22859)

A heap-based buffer overflow vulnerability exists in FreeRDP within the planar_decompress_plane_rle function, which may lead to memory corruption and arbitrary code execution.(CVE-2026-23530)

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP). Prior to version 3.21.0, a heap buffer overflow vulnerability existed in the ClearCodec component. Specifically, when glyphData is present, the clear_decompress function calls freerdp_image_copy_no_overlap without validating the destination rectangle. This allows for out-of-bounds read/write operations when processing crafted RDPGFX surface updates. A malicious server can exploit this to trigger a client-side heap buffer overflow, causing a crash (Denial of Service) and potential heap corruption. Depending on allocator behavior and surrounding heap layout, there is a risk of arbitrary code execution.(CVE-2026-23531)

A heap-buffer-overflow vulnerability exists in FreeRDP software that could allow an attacker to execute arbitrary code or cause denial of service on affected systems. This vulnerability affects the gdi_SurfaceToSurface function and is present in versions 3.20.2 and earlier.(CVE-2026-23532)

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, a client-side heap buffer overflow vulnerability exists in the RDPGFX ClearCodec decode path, specifically in the clear_decompress_residual_data function. When processing maliciously crafted residual data, out-of-bounds writes occur during color output. A malicious server can exploit this to trigger a client-side heap buffer overflow, causing a crash (Denial of Service) and potential heap corruption. Depending on allocator behavior and surrounding heap layout, there is a risk of arbitrary code execution.(CVE-2026-23533)

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP). Prior to version 3.21.0, a client-side heap buffer overflow vulnerability exists in the ClearCodec bands decode path. When a malicious server sends crafted band coordinates, it allows writes past the end of the destination surface buffer. This can be exploited to trigger a client-side heap buffer overflow, causing a crash (Denial of Service) and potentially leading to heap corruption with the risk of arbitrary code execution, depending on allocator behavior and surrounding heap layout.(CVE-2026-23534)

FreeRDP is a free implementation of the…

FreeRDP is a client implementation of the Remote Desktop Protocol (RDP) that follows Microsoft's open specifications. This package provides the client applications xfreerdp.

Security Fix(es):

A malicious server can trigger a client-side heap buffer overflow, causing a crash (DoS) and potential heap corruption with code-execution risk depending on allocator behavior and surrounding heap layout.(CVE-2026-22852)

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, a heap-buffer-overflow occurs in drive read when a server-controlled read length is used to read file data into an IRP output stream buffer without a hard upper bound, allowing an oversized read to overwrite heap memory. This vulnerability is fixed in 3.20.1.(CVE-2026-22854)

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.20.1, a heap out-of-bounds read occurs in the smartcard SetAttrib path when the cbAttrLen parameter does not match the actual NDR (Network Data Representation) buffer length. An attacker could potentially exploit this vulnerability to read sensitive information from process memory or cause the application to crash.(CVE-2026-22855)

A malicious server can trigger a client-side use after free, causing a crash (DoS) and potential heap corruption with code-execution risk depending on allocator behavior and surrounding heap layout.(CVE-2026-22856)

A malicious server can trigger a client-side heap buffer overflow, causing a crash (DoS) and potential heap corruption with code-execution risk depending on allocator behavior and surrounding heap layout. The vulnerability exists in the irp_thread_func function.(CVE-2026-22857)

A malicious server can trigger a client‑side heap buffer overflow, causing a crash (DoS) and potential heap corruption with code‑execution risk depending on allocator behavior and surrounding heap layout.(CVE-2026-22859)

A heap-based buffer overflow vulnerability exists in FreeRDP within the planar_decompress_plane_rle function, which may lead to memory corruption and arbitrary code execution.(CVE-2026-23530)

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP). Prior to version 3.21.0, a heap buffer overflow vulnerability existed in the ClearCodec component. Specifically, when glyphData is present, the clear_decompress function calls freerdp_image_copy_no_overlap without validating the destination rectangle. This allows for out-of-bounds read/write operations when processing crafted RDPGFX surface updates. A malicious server can exploit this to trigger a client-side heap buffer overflow, causing a crash (Denial of Service) and potential heap corruption. Depending on allocator behavior and surrounding heap layout, there is a risk of arbitrary code execution.(CVE-2026-23531)

A heap-buffer-overflow vulnerability exists in FreeRDP software that could allow an attacker to execute arbitrary code or cause denial of service on affected systems. This vulnerability affects the gdi_SurfaceToSurface function and is present in versions 3.20.2 and earlier.(CVE-2026-23532)

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, a client-side heap buffer overflow vulnerability exists in the RDPGFX ClearCodec decode path, specifically in the clear_decompress_residual_data function. When processing maliciously crafted residual data, out-of-bounds writes occur during color output. A malicious server can exploit this to trigger a client-side heap buffer overflow, causing a crash (Denial of Service) and potential heap corruption. Depending on allocator behavior and surrounding heap layout, there is a risk of arbitrary code execution.(CVE-2026-23533)

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP). Prior to version 3.21.0, a client-side heap buffer overflow vulnerability exists in the ClearCodec bands decode path. When a malicious server sends crafted band coordinates, it allows writes…

FreeRDP is a client implementation of the Remote Desktop Protocol (RDP) that follows Microsoft's open specifications. This package provides the client applications xfreerdp.

Security Fix(es):

A malicious server can trigger a client-side heap buffer overflow, causing a crash (DoS) and potential heap corruption with code-execution risk depending on allocator behavior and surrounding heap layout.(CVE-2026-22852)

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, a heap-buffer-overflow occurs in drive read when a server-controlled read length is used to read file data into an IRP output stream buffer without a hard upper bound, allowing an oversized read to overwrite heap memory. This vulnerability is fixed in 3.20.1.(CVE-2026-22854)

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.20.1, a heap out-of-bounds read occurs in the smartcard SetAttrib path when the cbAttrLen parameter does not match the actual NDR (Network Data Representation) buffer length. An attacker could potentially exploit this vulnerability to read sensitive information from process memory or cause the application to crash.(CVE-2026-22855)

A malicious server can trigger a client-side use after free, causing a crash (DoS) and potential heap corruption with code-execution risk depending on allocator behavior and surrounding heap layout.(CVE-2026-22856)

A malicious server can trigger a client-side heap buffer overflow, causing a crash (DoS) and potential heap corruption with code-execution risk depending on allocator behavior and surrounding heap layout. The vulnerability exists in the irp_thread_func function.(CVE-2026-22857)

A malicious server can trigger a client‑side heap buffer overflow, causing a crash (DoS) and potential heap corruption with code‑execution risk depending on allocator behavior and surrounding heap layout.(CVE-2026-22859)

A heap-based buffer overflow vulnerability exists in FreeRDP within the planar_decompress_plane_rle function, which may lead to memory corruption and arbitrary code execution.(CVE-2026-23530)

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP). Prior to version 3.21.0, a heap buffer overflow vulnerability existed in the ClearCodec component. Specifically, when glyphData is present, the clear_decompress function calls freerdp_image_copy_no_overlap without validating the destination rectangle. This allows for out-of-bounds read/write operations when processing crafted RDPGFX surface updates. A malicious server can exploit this to trigger a client-side heap buffer overflow, causing a crash (Denial of Service) and potential heap corruption. Depending on allocator behavior and surrounding heap layout, there is a risk of arbitrary code execution.(CVE-2026-23531)

A heap-buffer-overflow vulnerability exists in FreeRDP software that could allow an attacker to execute arbitrary code or cause denial of service on affected systems. This vulnerability affects the gdi_SurfaceToSurface function and is present in versions 3.20.2 and earlier.(CVE-2026-23532)

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, a client-side heap buffer overflow vulnerability exists in the RDPGFX ClearCodec decode path, specifically in the clear_decompress_residual_data function. When processing maliciously crafted residual data, out-of-bounds writes occur during color output. A malicious server can exploit this to trigger a client-side heap buffer overflow, causing a crash (Denial of Service) and potential heap corruption. Depending on allocator behavior and surrounding heap layout, there is a risk of arbitrary code execution.(CVE-2026-23533)

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP). Prior to version 3.21.0, a client-side heap buffer overflow vulnerability exists in the ClearCodec bands decode path. When a malicious server sends crafted band coordinates, it allows writes…

FreeRDP is a client implementation of the Remote Desktop Protocol (RDP) that follows Microsoft's open specifications. This package provides the client applications xfreerdp.

Security Fix(es):

A malicious server can trigger a client-side heap buffer overflow, causing a crash (DoS) and potential heap corruption with code-execution risk depending on allocator behavior and surrounding heap layout.(CVE-2026-22852)

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.20.1, a heap out-of-bounds read occurs in the smartcard SetAttrib path when the cbAttrLen parameter does not match the actual NDR (Network Data Representation) buffer length. An attacker could potentially exploit this vulnerability to read sensitive information from process memory or cause the application to crash.(CVE-2026-22855)

A malicious server can trigger a client-side use after free, causing a crash (DoS) and potential heap corruption with code-execution risk depending on allocator behavior and surrounding heap layout.(CVE-2026-22856)

A malicious server can trigger a client-side heap buffer overflow, causing a crash (DoS) and potential heap corruption with code-execution risk depending on allocator behavior and surrounding heap layout. The vulnerability exists in the irp_thread_func function.(CVE-2026-22857)

A malicious server can trigger a client‑side heap buffer overflow, causing a crash (DoS) and potential heap corruption with code‑execution risk depending on allocator behavior and surrounding heap layout.(CVE-2026-22859)

A heap-based buffer overflow vulnerability exists in FreeRDP within the planar_decompress_plane_rle function, which may lead to memory corruption and arbitrary code execution.(CVE-2026-23530)

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP). Prior to version 3.21.0, a heap buffer overflow vulnerability existed in the ClearCodec component. Specifically, when glyphData is present, the clear_decompress function calls freerdp_image_copy_no_overlap without validating the destination rectangle. This allows for out-of-bounds read/write operations when processing crafted RDPGFX surface updates. A malicious server can exploit this to trigger a client-side heap buffer overflow, causing a crash (Denial of Service) and potential heap corruption. Depending on allocator behavior and surrounding heap layout, there is a risk of arbitrary code execution.(CVE-2026-23531)

A heap-buffer-overflow vulnerability exists in FreeRDP software that could allow an attacker to execute arbitrary code or cause denial of service on affected systems. This vulnerability affects the gdi_SurfaceToSurface function and is present in versions 3.20.2 and earlier.(CVE-2026-23532)

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, a client-side heap buffer overflow vulnerability exists in the RDPGFX ClearCodec decode path, specifically in the clear_decompress_residual_data function. When processing maliciously crafted residual data, out-of-bounds writes occur during color output. A malicious server can exploit this to trigger a client-side heap buffer overflow, causing a crash (Denial of Service) and potential heap corruption. Depending on allocator behavior and surrounding heap layout, there is a risk of arbitrary code execution.(CVE-2026-23533)

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP). Prior to version 3.21.0, a client-side heap buffer overflow vulnerability exists in the ClearCodec bands decode path. When a malicious server sends crafted band coordinates, it allows writes past the end of the destination surface buffer. This can be exploited to trigger a client-side heap buffer overflow, causing a crash (Denial of Service) and potentially leading to heap corruption with the risk of arbitrary code execution, depending on allocator behavior and surrounding heap layout.(CVE-2026-23534)

FreeRDP is a free implementation of the…

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. The xfreerdp client can connect to RDP servers such as Microsoft Windows machines, xrdp, and VirtualBox.

Security Fix(es):

• freerdp: FreeRDP: Denial of service via heap use-after-free during auto-reconnect (CVE-2026-25997)

• freerdp: FreeRDP: Denial of service due to use-after-free vulnerability (CVE-2026-25952)

• freerdp: FreeRDP: Denial of Service via double free vulnerability during disconnect (CVE-2026-26986)

• freerdp: FreeRDP has a heap-buffer-overflow in bitmap_cache_put via OOB cacheId (CVE-2026-29775)

• freerdp: FreeRDP has an out-of-bounds read in ADPCM decoders due to missing predictor/step_index bounds checks (CVE-2026-31885)

• freerdp: FreeRDP has a division-by-zero in ADPCM decoders when nBlockAlign is 0 (CVE-2026-31884)

• freerdp: FreeRDP: Denial of Service via crafted audio data in RDP (CVE-2026-31883)

• FreeRDP: FreeRDP: Information disclosure via heap memory out of bounds read (CVE-2026-33985)

• FreeRDP: FreeRDP: Information disclosure and denial of service via heap-buffer-overflow read (CVE-2026-33982)

• FreeRDP: FreeRDP: Memory corruption vulnerability allows denial of service or arbitrary code execution (CVE-2026-33987)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. The xfreerdp client can connect to RDP servers such as Microsoft Windows machines, xrdp, and VirtualBox.

Security Fix(es):

• freerdp: FreeRDP: Denial of service via heap use-after-free during auto-reconnect (CVE-2026-25997)

• freerdp: FreeRDP: Denial of service due to use-after-free vulnerability (CVE-2026-25952)

• freerdp: FreeRDP: Denial of Service via double free vulnerability during disconnect (CVE-2026-26986)

• freerdp: FreeRDP has a heap-buffer-overflow in bitmap_cache_put via OOB cacheId (CVE-2026-29775)

• freerdp: FreeRDP has an out-of-bounds read in ADPCM decoders due to missing predictor/step_index bounds checks (CVE-2026-31885)

• freerdp: FreeRDP has a division-by-zero in ADPCM decoders when nBlockAlign is 0 (CVE-2026-31884)

• freerdp: FreeRDP: Denial of Service via crafted audio data in RDP (CVE-2026-31883)

• FreeRDP: FreeRDP: Information disclosure via heap memory out of bounds read (CVE-2026-33985)

• FreeRDP: FreeRDP: Information disclosure and denial of service via heap-buffer-overflow read (CVE-2026-33982)

• FreeRDP: FreeRDP: Memory corruption vulnerability allows denial of service or arbitrary code execution (CVE-2026-33987)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, xf_clipboard_format_equal reads freed lastSentFormats memory because xf_clipboard_formats_free (called from the cliprdr channel thread during auto-reconnect) frees the array while the X11 event thread concurrently iterates it in xf_clipboard_changed, triggering a heap use after free. Version 3.23.0 fixes the issue.

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. The xfreerdp client can connect to RDP servers such as Microsoft Windows machines, xrdp, and VirtualBox.

Security Fix(es):

• freerdp: FreeRDP: Denial of service via heap use-after-free during auto-reconnect (CVE-2026-25997)
• freerdp: FreeRDP: Denial of service due to use-after-free vulnerability (CVE-2026-25952)
• freerdp: FreeRDP: Denial of Service via double free vulnerability during disconnect (CVE-2026-26986)
• freerdp: FreeRDP has a heap-buffer-overflow in bitmap_cache_put via OOB cacheId (CVE-2026-29775)
• freerdp: FreeRDP has an out-of-bounds read in ADPCM decoders due to missing predictor/step_index bounds checks (CVE-2026-31885)
• freerdp: FreeRDP has a division-by-zero in ADPCM decoders when nBlockAlign is 0 (CVE-2026-31884)
• freerdp: FreeRDP: Denial of Service via crafted audio data in RDP (CVE-2026-31883)
• FreeRDP: FreeRDP: Information disclosure via heap memory out of bounds read (CVE-2026-33985)
• FreeRDP: FreeRDP: Information disclosure and denial of service via heap-buffer-overflow read (CVE-2026-33982)
• FreeRDP: FreeRDP: Memory corruption vulnerability allows denial of service or arbitrary code execution (CVE-2026-33987)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Updated packages bring lot of security fixes. Please see the links for additional information.

These are all security issues fixed in the freerdp-3.24.1-1.1 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the freerdp2-2.11.7-8.1 package on the GA media of openSUSE Tumbleweed.

This update for freerdp2 fixes the following issues:

Changes in freerdp2:

• Update freerdp-3-macro:

  • Add WINPR_ATTR_MALLOC macro from freerdp 3

• Security fixes for the following issues:

  • CVE-2026-25941: Fixed a out of bounds read (bsc#1258919)
  • CVE-2026-25942: Fixed a buffer overflow in xf_rail_server_execute_result() (bsc#1258920)
  • CVE-2026-27951: Fixed a denial of service in Stream_EnsureCapacity() (bsc#1258939)
  • CVE-2026-25997: Fixed a use-after-free in xf_clipboard_format_equal() (bsc#1258977)
  • CVE-2026-26986: Fixed a use-after-free in rail_window_free() (bsc#1258967)
  • CVE-2026-27015: Fixed a client denial of service via reachable assert (bsc#1258987)
  • CVE-2026-25952: Fixed a use-after-free in xf_SetWindowMinMaxInfo() (bsc#1258921)
  • CVE-2026-25953: Fixed a use-after-free in xf_AppUpdateWindowFromSurface() (bsc#1258923)
  • CVE-2026-25954: Fixed a use-after-free in xf_rail_server_local_move_size() (bsc#1258924)
  • CVE-2026-24684: Fixed a use-after-free in play_thread() (bsc#1257991).
  • CVE-2026-26271: Fixed a buffer overread in icon processing (bsc#1258979)
  • CVE-2026-26955: Fixed a out of bounds write (bsc#1258982)
  • CVE-2026-26965: Fixed a out of bounds write (bsc#1258985)
  • CVE-2026-31806: Fixed a buffer overflow via improper validation of server messages (bsc#1259653)
  • CVE-2026-31883: Fixed a buffer overflow via crafted audio format and wave data (bsc#1259679)
  • CVE-2026-31885: Fixed a out of bounds read (bsc#1259686)
  • CVE-2026-24491: Fix use-after-free that was accidentally introduced in the backport (bsc#1257981)
  • CVE-2026-22855: Fixed a buffer overflow in smartcard_unpack_set_attrib_call() (bsc#1256721)
  • CVE-2026-22857: Fixed a use-after-free in irp_thread_func() (bsc#1256723)
  • CVE-2026-23533: Fixed a buffer overflow in clear_decompress_residual_data() (bsc#1256943)
  • CVE-2026-23732: Fixed a buffer overflow in Glyph_Alloc() (bsc#1256945)
  • CVE-2026-23883: Fixed a use-after-free (bsc#1256946)
  • CVE-2026-23884: Fixed a use-after-free in gdi_set_bounds (bsc#1256947)

This update for freerdp fixes the following issues:

Update to version 3.24.2.

Security issues fixed:

• CVE-2026-25941: out-of-bounds read in the FreeRDP client RDPGFX channel (bsc#1258919).
• CVE-2026-25942: buffer overflow of global array in xf_rail_server_execute_result (bsc#1258920).
• CVE-2026-25952: heap use-after-free in xf_SetWindowMinMaxInfo (bsc#1258921).
• CVE-2026-25953: heap use-after-free in xf_AppUpdateWindowFromSurface (bsc#1258923).
• CVE-2026-25954: heap use-after-free in xf_rail_server_local_move_size (bsc#1258924).
• CVE-2026-25955: heap use-after-free in xf_AppUpdateWindowFromSurface (bsc#1258973).
• CVE-2026-25959: heap use-after-free in xf_cliprdr_provide_data_ (bsc#1258976).
• CVE-2026-25997: heap use-after-free in xf_clipboard_format_equal (bsc#1258977).
• CVE-2026-26271: buffer overread in FreeRDP icon processing (bsc#1258979).
• CVE-2026-26955: out-of-bounds write in FreeRDP clients using the GDI surface pipeline (bsc#1258982).
• CVE-2026-26965: out-of-bounds write in FreeRDP client RLE planar decode path (bsc#1258985).
• CVE-2026-29774: heap buffer overflow in the FreeRDP client's AVC420/AVC444 YUV-to-RGB conversion path (bsc#1259689).
• CVE-2026-29775: out-of-bounds access in the FreeRDP client bitmap cache subsystem (bsc#1259684).
• CVE-2026-29776: integer underflow in update_read_cache_bitmap_order (bsc#1259692).
• CVE-2026-31806: heap buffer overflow in nsc_process_message (bsc#1259653).
• CVE-2026-31883: heap buffer overwrite due to a size_t underflow in the IMA-ADPCM and MS-ADPCM audio decoders (bsc#1259679).
• CVE-2026-31884: division by zero in MS-ADPCM and IMA-ADPCM decoders (bsc#1259680).
• CVE-2026-31885: out-of-bounds read in MS-ADPCM and IMA-ADPCM decoders (bsc#1259686).
• CVE-2026-31897: out-of-bounds read in freerdp_bitmap_decompress_planar (bsc#1259693).
• CVE-2026-33952: client-side crash due to WINPR_ASSERT() failure in rts_read_auth_verifier_no_checks() (bsc#1261196).
• CVE-2026-33977: client-side crash due to WINPR_ASSERT() failure in IMA ADPCM audio decoder (bsc#1261198).
• CVE-2026-33982: heap buffer overread in in winpr_aligned_offset_recalloc (bsc#1261222).
• CVE-2026-33983: undefined behavior and resource exhaustion via 80 billion iteration loop in progressive_decompress_tile_upgrade (bsc#1261200).
• CVE-2026-33984: heap buffer overflow in ClearCodec resize_vbar_entry (bsc#1261211).
• CVE-2026-33985: heap out-of-bounds read in clear_decompress_glyph_data (bsc#1261217).
• CVE-2026-33986: heap out-of-bounds write due to H.264 YUV buffer dimension desync (bsc#1261223).
• CVE-2026-33987: heap out-of-bounds write due to persistent cache bmpSize desync (bsc#1261226).
• CVE-2026-33995: double-free vulnerability in kerberos_AcceptSecurityContext and kerberos_InitializeSecurityContextA (bsc#1261227).

Other updates and bugfixes:

• Version 3.24.2:

  • [channels,video] fix wrong cast (#12511)
  • [codec,openh264] reject encoder ABI mismatch on runtime-loaded library (#12510)
  • [client,sdl] create a copy of rdpPointer (#12512)
  • [codec,video] properly pass intermediate format (#12518)
  • [utils, signal] lazily initialize Windows CRITICAL_SECTION to match POSIX static mutex behavior (#12520) winpr: improve libunwind backtraces (#12530)
  • [server,shadow] remember selected caps (#12528)
  • Zero credential data before free in NLA and NTLM context (#12532)
  • [server,proxy] ignore missing client in input channel (#12536)
  • [server,proxy] ignore rdpdr messages (#12537)
  • [winpr,sspi] improve kerberos logging (#12538)
  • Codec fixes (#12542)

• Version 3.24.1:

  • [warnings] fix various sign and cast warnings (#12480)
  • [client,x11] start with xfc->remote_app = TRUE; (#12491)
  • Sam file read regression fix (#12484)
  • [ncrypt,smartcardlogon] support ECC keys in PKCS#11 smartcard enumeration (#12490)
  • Fix: memory leak in rdp_client_establish_keys() (#12494)
  • Fix memory leak in freerdp_settings_int_buffer_copy() on…

This update for freerdp fixes the following issues:

• CVE-2026-25941: Out-of-Bounds Read in client RDPGFX channel via crafted WIRE_TO_SURFACE_2 PDU (bsc#1258919).
• CVE-2026-25942: Global-buffer-overflow in xf_rail_server_execute_result (bsc#1258920).
• CVE-2026-25952: Heap-use-after-free in xf_SetWindowMinMaxInfo (bsc#1258921).
• CVE-2026-25953: Heap-use-after-free in xf_AppUpdateWindowFromSurface (bsc#1258923).
• CVE-2026-25954: Heap-use-after-free in xf_rail_server_local_move_size (bsc#1258924).
• CVE-2026-25997: Heap-use-after-free in xf_clipboard_format_equal (bsc#1258977).
• CVE-2026-26986: Heap-use-after-free in rail_window_free (bsc#1258967).
• CVE-2026-27015: Smartcard NDR alignment padding triggers reachable WINPR_ASSERT abort (bsc#1258987).
• CVE-2026-27951: Denial of service via endless blocking loop in Stream_EnsureCapacity (bsc#1258939).
• CVE-2026-29774: Missing bounds validation can cause a client-side heap buffer overflow (bsc#1259689).
• CVE-2026-29775: Malicious server can trigger a client-side heap out-of-bounds access (bsc#1259684).
• CVE-2026-29776: Missing length check can lead to an integer underflow (bsc#1259692).
• CVE-2026-31897: Missing length check can cause an out-of-bounds read (bsc#1259693).

This update for freerdp fixes the following issues:

• CVE-2026-25941: Out-of-Bounds Read in client RDPGFX channel via crafted WIRE_TO_SURFACE_2 PDU (bsc#1258919).
• CVE-2026-25942: Global-buffer-overflow in xf_rail_server_execute_result (bsc#1258920).
• CVE-2026-25952: Heap-use-after-free in xf_SetWindowMinMaxInfo (bsc#1258921).
• CVE-2026-25953: Heap-use-after-free in xf_AppUpdateWindowFromSurface (bsc#1258923).
• CVE-2026-25954: Heap-use-after-free in xf_rail_server_local_move_size (bsc#1258924).
• CVE-2026-25955: Heap-use-after-free in xf_AppUpdateWindowFromSurface (bsc#1258973).
• CVE-2026-25959: Heap-use-after-free in xf_cliprdr_provide_data_ (bsc#1258976).
• CVE-2026-25997: Heap-use-after-free in xf_clipboard_format_equal (bsc#1258977).
• CVE-2026-26986: Heap-use-after-free in rail_window_free (bsc#1258967).
• CVE-2026-27015: Smartcard NDR alignment padding triggers reachable WINPR_ASSERT abort (bsc#1258987).
• CVE-2026-27950: Denial of service due to incomplete fix for heap-use-after-free vulnerability (bsc#1258941).
• CVE-2026-27951: Denial of service via endless blocking loop in Stream_EnsureCapacity (bsc#1258939).
• CVE-2026-29774: Missing bounds validation can cause a client-side heap buffer overflow (bsc#1259689).
• CVE-2026-29775: Malicious server can trigger a client-side heap out-of-bounds access (bsc#1259684).
• CVE-2026-29776: Missing length check can lead to an integer underflow (bsc#1259692).
• CVE-2026-31897: Missing length check can cause an out-of-bounds read (bsc#1259693).

This update for freerdp fixes the following issues:

• CVE-2026-25941: Out-of-Bounds Read in client RDPGFX channel via crafted WIRE_TO_SURFACE_2 PDU (bsc#1258919).
• CVE-2026-25942: Global-buffer-overflow in xf_rail_server_execute_result (bsc#1258920).
• CVE-2026-25952: Heap-use-after-free in xf_SetWindowMinMaxInfo (bsc#1258921).
• CVE-2026-25953: Heap-use-after-free in xf_AppUpdateWindowFromSurface (bsc#1258923).
• CVE-2026-25954: Heap-use-after-free in xf_rail_server_local_move_size (bsc#1258924).
• CVE-2026-25997: Heap-use-after-free in xf_clipboard_format_equal (bsc#1258977).
• CVE-2026-26986: Heap-use-after-free in rail_window_free (bsc#1258967).
• CVE-2026-27015: Smartcard NDR alignment padding triggers reachable WINPR_ASSERT abort (bsc#1258987).
• CVE-2026-27951: Denial of service via endless blocking loop in Stream_EnsureCapacity (bsc#1258939).
• CVE-2026-29774: Missing bounds validation can cause a client-side heap buffer overflow (bsc#1259689).
• CVE-2026-29775: Malicious server can trigger a client-side heap out-of-bounds access (bsc#1259684).
• CVE-2026-29776: Missing length check can lead to an integer underflow (bsc#1259692).
• CVE-2026-31897: Missing length check can cause an out-of-bounds read (bsc#1259693).

This update for freerdp fixes the following issues:

• CVE-2026-25941: Out-of-Bounds Read in client RDPGFX channel via crafted WIRE_TO_SURFACE_2 PDU (bsc#1258919).
• CVE-2026-25942: Global-buffer-overflow in xf_rail_server_execute_result (bsc#1258920).
• CVE-2026-25952: Heap-use-after-free in xf_SetWindowMinMaxInfo (bsc#1258921).
• CVE-2026-25953: Heap-use-after-free in xf_AppUpdateWindowFromSurface (bsc#1258923).
• CVE-2026-25954: Heap-use-after-free in xf_rail_server_local_move_size (bsc#1258924).
• CVE-2026-25997: Heap-use-after-free in xf_clipboard_format_equal (bsc#1258977).
• CVE-2026-26986: Heap-use-after-free in rail_window_free (bsc#1258967).
• CVE-2026-27015: Smartcard NDR alignment padding triggers reachable WINPR_ASSERT abort (bsc#1258987).
• CVE-2026-27951: Denial of service via endless blocking loop in Stream_EnsureCapacity (bsc#1258939).
• CVE-2026-29774: Missing bounds validation can cause a client-side heap buffer overflow (bsc#1259689).
• CVE-2026-29775: Malicious server can trigger a client-side heap out-of-bounds access (bsc#1259684).
• CVE-2026-29776: Missing length check can lead to an integer underflow (bsc#1259692).
• CVE-2026-31897: Missing length check can cause an out-of-bounds read (bsc#1259693).

This update for freerdp2 fixes the following issues:

• CVE-2026-25941: Out-of-Bounds Read in client RDPGFX channel via crafted WIRE_TO_SURFACE_2 PDU (bsc#1258919).
• CVE-2026-25942: Global-buffer-overflow in xf_rail_server_execute_result (bsc#1258920).
• CVE-2026-25952: Heap-use-after-free in xf_SetWindowMinMaxInfo (bsc#1258921).
• CVE-2026-25953: Heap-use-after-free in xf_AppUpdateWindowFromSurface (bsc#1258923).
• CVE-2026-25954: Heap-use-after-free in xf_rail_server_local_move_size (bsc#1258924).
• CVE-2026-25997: Heap-use-after-free in xf_clipboard_format_equal (bsc#1258977).
• CVE-2026-26986: Heap-use-after-free in rail_window_free (bsc#1258967).
• CVE-2026-27015: Smartcard NDR alignment padding triggers reachable WINPR_ASSERT abort (bsc#1258987).
• CVE-2026-27951: Denial of Service via endless blocking loop in Stream_EnsureCapacity (bsc#1258939).
• CVE-2026-29774: Missing bounds validation can cause a client-side heap buffer overflow (bsc#1259689).
• CVE-2026-29775: Malicious server can trigger a client-side heap out-of-bounds access (bsc#1259684).
• CVE-2026-29776: Missing length check can lead to an integer underflow (bsc#1259692).
• CVE-2026-31897: Missing length check can cause an out-of-bounds read (bsc#1259693).

This update for freerdp fixes the following issues:

Update to version 3.24.2.

Security issues fixed:

• CVE-2026-25941: out-of-bounds read in the FreeRDP client RDPGFX channel (bsc#1258919).
• CVE-2026-25942: buffer overflow of global array in xf_rail_server_execute_result (bsc#1258920).
• CVE-2026-25952: heap use-after-free in xf_SetWindowMinMaxInfo (bsc#1258921).
• CVE-2026-25953: heap use-after-free in xf_AppUpdateWindowFromSurface (bsc#1258923).
• CVE-2026-25954: heap use-after-free in xf_rail_server_local_move_size (bsc#1258924).
• CVE-2026-25955: heap use-after-free in xf_AppUpdateWindowFromSurface (bsc#1258973).
• CVE-2026-25959: heap use-after-free in xf_cliprdr_provide_data_ (bsc#1258976).
• CVE-2026-25997: heap use-after-free in xf_clipboard_format_equal (bsc#1258977).
• CVE-2026-26271: buffer overread in FreeRDP icon processing (bsc#1258979).
• CVE-2026-26955: out-of-bounds write in FreeRDP clients using the GDI surface pipeline (bsc#1258982).
• CVE-2026-26965: out-of-bounds write in FreeRDP client RLE planar decode path (bsc#1258985).
• CVE-2026-29774: heap buffer overflow in the FreeRDP client's AVC420/AVC444 YUV-to-RGB conversion path (bsc#1259689).
• CVE-2026-29775: out-of-bounds access in the FreeRDP client bitmap cache subsystem (bsc#1259684).
• CVE-2026-29776: integer underflow in update_read_cache_bitmap_order (bsc#1259692).
• CVE-2026-31806: heap buffer overflow in nsc_process_message (bsc#1259653).
• CVE-2026-31883: heap buffer overwrite due to a size_t underflow in the IMA-ADPCM and MS-ADPCM audio decoders (bsc#1259679).
• CVE-2026-31884: division by zero in MS-ADPCM and IMA-ADPCM decoders (bsc#1259680).
• CVE-2026-31885: out-of-bounds read in MS-ADPCM and IMA-ADPCM decoders (bsc#1259686).
• CVE-2026-31897: out-of-bounds read in freerdp_bitmap_decompress_planar (bsc#1259693).
• CVE-2026-33952: client-side crash due to WINPR_ASSERT() failure in rts_read_auth_verifier_no_checks() (bsc#1261196).
• CVE-2026-33977: client-side crash due to WINPR_ASSERT() failure in IMA ADPCM audio decoder (bsc#1261198).
• CVE-2026-33982: heap buffer overread in in winpr_aligned_offset_recalloc (bsc#1261222).
• CVE-2026-33983: undefined behavior and resource exhaustion via 80 billion iteration loop in progressive_decompress_tile_upgrade (bsc#1261200).
• CVE-2026-33984: heap buffer overflow in ClearCodec resize_vbar_entry (bsc#1261211).
• CVE-2026-33985: heap out-of-bounds read in clear_decompress_glyph_data (bsc#1261217).
• CVE-2026-33986: heap out-of-bounds write due to H.264 YUV buffer dimension desync (bsc#1261223).
• CVE-2026-33987: heap out-of-bounds write due to persistent cache bmpSize desync (bsc#1261226).
• CVE-2026-33995: double-free vulnerability in kerberos_AcceptSecurityContext and kerberos_InitializeSecurityContextA (bsc#1261227).

Other updates and bugfixes:

• Version 3.24.2:

  • [channels,video] fix wrong cast (#12511)
  • [codec,openh264] reject encoder ABI mismatch on runtime-loaded library (#12510)
  • [client,sdl] create a copy of rdpPointer (#12512)
  • [codec,video] properly pass intermediate format (#12518)
  • [utils, signal] lazily initialize Windows CRITICAL_SECTION to match POSIX static mutex behavior (#12520) winpr: improve libunwind backtraces (#12530)
  • [server,shadow] remember selected caps (#12528)
  • Zero credential data before free in NLA and NTLM context (#12532)
  • [server,proxy] ignore missing client in input channel (#12536)
  • [server,proxy] ignore rdpdr messages (#12537)
  • [winpr,sspi] improve kerberos logging (#12538)
  • Codec fixes (#12542)

• Version 3.24.1:

  • [warnings] fix various sign and cast warnings (#12480)
  • [client,x11] start with xfc->remote_app = TRUE; (#12491)
  • Sam file read regression fix (#12484)
  • [ncrypt,smartcardlogon] support ECC keys in PKCS#11 smartcard enumeration (#12490)
  • Fix: memory leak in rdp_client_establish_keys() (#12494)
  • Fix memory leak in freerdp_settings_int_buffer_copy() on…

It was discovered that FreeRDP incorrectly handled certain RDP packets. A remote attacker could use this issue to cause FreeRDP to crash, resulting in a denial of service, or possibly execute arbitrary code.