What is CVE-2021-44331?

CVE-2021-44331 is a high-severity vulnerability in Arm Adaptive Scalable Texture Compression Encoder, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2022-02-28.

How severe is CVE-2021-44331?

High severity. CVSS v3 base score is 7.8 out of 10.

Buffer overflow in Arm Adaptive Scalable Texture Compression Encoder

CVE-2021-44331

ARM astcenc 3.2.0 is vulnerable to Buffer Overflow in function encode_ise().

Vulnerability class: Buffer Overflow

Published 2022-02-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.008 (55.7th percentile), scored 2026-10-07.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 55.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.008 · change: -0.001

Affected products

Arm Adaptive Scalable Texture Compression Encoder — versions 3.2.0

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

github.com/ARM-software/astc-encoder/issues/294 (Exploit, Patch, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2021-44331?: CVE-2021-44331 is a high-severity vulnerability in Arm Adaptive Scalable Texture Compression Encoder, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2022-02-28.
How severe is CVE-2021-44331?: High severity. CVSS v3 base score is 7.8 out of 10.