CVE-2021-43086
ARM astcenc 3.2.0 is vulnerable to Buffer Overflow. When the compression function of the astc...
ARM astcenc 3.2.0 is vulnerable to Buffer Overflow. When the compression function of the astc-encoder project with -cl option was used, a stack-buffer-overflow occurred in function encode_ise() in function compress_symbolic_block_for_partition_2planes() in "/Source/astcenc_compress_symbolic.cpp".
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
ARM astcenc 3.2.0 is vulnerable to Buffer Overflow. When the compression function of the astc-encoder project with -cl option was used, a stack-buffer-overflow occurred in function encode_ise() in function compress_symbolic_block_for_partition_2planes() in "/Source/astcenc_compress_symbolic.cpp".
- Record
CVE-2021-43086- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-787
- Updated
- 2026-11-02
CVE List No score
ARM astcenc 3.2.0 is vulnerable to Buffer Overflow. When the compression function of the astc-encoder project with -cl option was used, a stack-buffer-overflow occurred in function encode_ise() in function compress_symbolic_block_for_partition_2planes() in "/Source/astcenc_compress_symbolic.cpp".
- Record
CVE-2021-43086- Updated
- 2026-11-02
EUVDEUVD-2021-30039 No score
ARM astcenc 3.2.0 is vulnerable to Buffer Overflow. When the compression function of the astc-encoder project with -cl option was used, a stack-buffer-overflow occurred in function encode_ise() in function compress_symbolic_block_for_partition_2planes() in "/Source/astcenc_compress_symbolic.cpp".
- Record
EUVD-2021-30039- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-4jw7-vxxv-4m7h
ARM astcenc 3.2.0 is vulnerable to Buffer Overflow. When the compression function of the astc...
ARM astcenc 3.2.0 is vulnerable to Buffer Overflow. When the compression function of the astc-encoder project with -cl option was used, a stack-buffer-overflow occurred in function encode_ise() in function compress_symbolic_block_for_partition_2planes() in "/Source/astcenc_compress_symbolic.cpp".
- Record
GHSA-4jw7-vxxv-4m7h- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2021-43086
ARM astcenc 3.2.0 is vulnerable to Buffer Overflow. When the compression function of the astc-encoder project with -cl option was used, a stack-buffer-overflow occurred in function encode_ise() in function compress_symbolic_block_for_partition_2planes() in "/Source/astcenc_compress_symbolic.cpp".
- Record
UBUNTU-CVE-2021-43086- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
astc-encoderUbuntu:22.04:LTS |
All versions, plus listed versions 2.1+ds-33.2+ds-23.3+ds-1 |
None known |
astc-encoderUbuntu:24.04:LTS |
All versions, plus listed versions 4.5.0+ds-24.7.0+ds-24.7.0+ds-2build14.7.0+ds-2build24.7.0+ds-2build3 |
None known |
astc-encoderUbuntu:25.10 |
All versions, plus listed versions 5.1.0+ds-25.2.0+ds-1 |
None known |
astc-encoderUbuntu:26.10 |
All versions, plus listed versions 5.3.0+ds-5 |
None known |
astc-encoderUbuntu:26.04:LTS |
All versions, plus listed versions 5.2.0+ds-15.3.0+ds-5 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-43086 is a critical vulnerability (CVSS 9.8) in Arm Adaptive Scalable Texture Compression Encoder, published February 28, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.25%, the 69th percentile. No source names a fixed version.