CVE-2026-33164

libde265 is an open source implementation of the h.265 video codec. Prior to version 1.0.17, a malformed H.265 PPS NAL unit causes a segmentation fault in pic_parameter_set::set_derived_values(). This issue has been patched in version 1.0.17.

Root has patched CVE-2026-33164 in the libde265 package for Root:Debian:12. Multiple fixed versions available.

Root has patched CVE-2026-33164 in the libde265 package for Root:Debian:13. Multiple fixed versions available.

libde265 is an open source implementation of the h.265 video codec. Prior to version 1.0.17, a malformed H.265 PPS NAL unit causes a segmentation fault in pic_parameter_set::set_derived_values(). This issue has been patched in version 1.0.17.

Heap Buffer Overflow vulnerability in Libde265 v1.0.15 allows attackers to crash the application via crafted payload to display444as420 function at sdl.cc. (CVE-2024-38949) Heap Buffer Overflow vulnerability in Libde265 v1.0.15 allows attackers to crash the application via crafted payload to __interceptor_memcpy function. (CVE-2024-38950) strukturag libde265 commit d9fea9d wa discovered to contain a segmentation fault via the component decoder_context::compute_framedrop_table(). (CVE-2025-61147) NULL Pointer Dereference in libde265. (CVE-2026-33164) Heap out-of-bounds write in libde265 1.0.16. (CVE-2026-33165) libde265 has a heap-buffer-overflow READ in decode_slice_unit_tiles via unvalidated PPS tile geometry. (CVE-2026-45382) libde265 has a heap buffer overflow (OOB read) in decode_slice_unit_WPP() via out-of-bounds CtbAddrRStoTS access — libde265 <= v1.0.18. (CVE-2026-45383) libde265 has an out-of-bounds write in process_reference_picture_set via predicted short-term RPS. (CVE-2026-49295) libde265 has an unbounded memory leak via orphaned slice headers in read_slice_NAL. (CVE-2026-49337) libde265 has a heap buffer overflow in de265_image_get_buffer via SPS dimension integer overflow. (CVE-2026-49346) Pixel accessor signed integer overflow causes heap OOB read/write. (CVE-2026-54240) SAO sequential filter heap buffer overflow via signed integer overflow. (CVE-2026-54241)

It was discovered that libde265 did not properly manage memory under certain circumstances. An attacker could possibly use this issue to cause libde265 to crash, resulting in a denial of service. This issue only affected Ubuntu 22.04 LTS. (CVE-2023-51792)

It was discovered that libde265 did not properly handle certain malformed media files, leading to a heap buffer overflow. An attacker could possibly use this issue to cause libde265 to crash, resulting in a denial of service. (CVE-2024-38949, CVE-2024-38950)

It was discovered that libde265 did not properly handle certain malformed input, leading to a segmentation fault. An attacker could possibly use this issue to cause libde265 to crash, resulting in a denial of service. (CVE-2025-61147)

It was discovered that libde265 did not properly handle a malformed H.265 PPS NAL unit, leading to a segmentation fault. An attacker could possibly use this issue to cause libde265 to crash, resulting in a denial of service. (CVE-2026-33164)

It was discovered that libde265 did not properly handle certain crafted HEVC bitstreams, leading to an out-of-bounds write. An attacker could possibly use this issue to cause libde265 to crash, resulting in a denial of service. (CVE-2026-33165)

Valentin Mercier discovered that libde265 did not properly validate tile geometry when handling crafted media files, leading to an out-of-bounds read. An attacker could possibly use this issue to cause libde265 to crash, resulting in a denial of service, or to obtain sensitive information. (CVE-2026-45382)

It was discovered that libde265 did not properly validate certain values when decoding crafted media files, leading to an out-of-bounds read. An attacker could possibly use this issue to cause libde265 to crash, resulting in a denial of service, or to obtain sensitive information. (CVE-2026-45383)

Ying Dong discovered that libde265 did not properly validate reference picture set entries when handling a crafted H.265 bitstream, leading to an out-of-bounds write. An attacker could possibly use this issue to cause libde265 to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2026-49295)

Ying Dong discovered that libde265 did not properly manage memory when handling a crafted sequence of H.265 NAL units, leading to excessive memory consumption. An attacker could possibly use this issue to cause libde265 to use excessive resources, leading to a denial of service. (CVE-2026-49337)

Ying Dong discovered that libde265 did not properly handle certain crafted H.265 bitstreams with large dimensions, leading to a heap buffer overflow. An attacker could possibly use this issue to cause libde265 to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2026-49346)

It was discovered that libde265 did not properly handle certain crafted HEVC bitstreams with large dimensions, leading to an out-of-bounds read and write. An attacker could possibly use this issue to cause libde265 to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2026-54240)

It was discovered that libde265 did not properly handle certain crafted HEVC bitstreams with large dimensions, leading to a heap buffer overflow. An attacker could possibly use this issue to cause libde265 to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2026-54241)