CVE-2021-43086: Arm Adaptive Scalable Texture Compression Encoder

Critical severity, CVSS 9.8. EPSS: 1.2% chance of exploitation in the next 30 days.

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".

Affected products

• Arm Adaptive Scalable Texture Compression Encoder: version 3.2.0 only

Published 2022-02-28. Last modified 2026-06-17.