CVE-2026-54241 — libde265: SAO sequential filter heap buffer overflow via signed integer overflow

CVE-2026-54241

libde265: SAO sequential filter heap buffer overflow via signed integer overflow PUBLISHED

Description (CNA)

libde265 is an open source implementation of the h.265 video codec. Versions prior to 1.1.1 use signed 32-bit arithmetic to calculate the sample adaptive offset input-buffer size, allowing a crafted HEVC stream with large dimensions and 16-bit luma samples to cause an integer overflow, an undersized allocation, and an out-of-bounds heap read that may expose heap data in decoded output or crash the decoder. Version 1.1.1 contains a patch.

Affected (CNA)

Vendor / product	Versions
strukturag / libde265	affected < 1.1.1

CWE

CWE-122, CWE-190

References

https://github.com/strukturag/libde265/security/advisories/GHSA-j2qq-x2xq-g9wr

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.