What’s Vulnerable › Vulnerabilities

CVE-2021-33815

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-06-03 · updated 2026-06-17
• Weakness: CWE-129

Description

dwa_uncompress in libavcodec/exr.c in FFmpeg 4.4 allows an out-of-bounds array access because dc_count is not strictly checked.

Affected products

• FFmpeg: 4.4

References

• https://github.com/FFmpeg/FFmpeg/commit/26d3c81bc5ef2f8c3f09d45eaeacfb4b1139a777
• https://security.gentoo.org/glsa/202312-14
• https://github.com/FFmpeg/FFmpeg/commit/26d3c81bc5ef2f8c3f09d45eaeacfb4b1139a777
• https://security.gentoo.org/glsa/202312-14

Get alerted when CVE-2021-33815 or the next vulnerability affects your stack