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TI-2021-19145 Aliases CVE-2021-43086GHSA-4jw7-vxxv-4m7h

ARM astcenc 3.2.0 is vulnerable to Buffer Overflow.

Priority MEDIUM 45CWE-787Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

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".

Why it matters now

EPSS 0.01248 69th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:arm:adaptive_scalable_texture_compression_encoder:3.2.0:*:*:*:*:*:*:*3.2.0VulnerableArm
  • cpe:2.3:a:arm:adaptive_scalable_texture_compression_encoder:3.2.0:*:*:*:*:*:*:* Versions 3.2.0 Vulnerable ·Arm

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-43086
  2. 2026-10-03 Alias added: GHSA-4jw7-vxxv-4m7h

References

Exploit 1

  • TI-2021-19955 ARM astcenc 3.2.0 is vulnerable to Buffer Overflow in function encode_ise(). CVSS 3.1HIGH 7.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences