Heap-based Buffer Overflow Affecting libde265 package, versions <1.0.4-1ubuntu0.4+esm2
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU2004-LIBDE265-17766019
- published18 Jul 2026
- disclosed11 Sept 2026
Introduced: 18 Jul 2026
CVE-2026-54241 (opens in a new tab)How to fix?
Upgrade Ubuntu:20.04 libde265 to version 1.0.4-1ubuntu0.4+esm2 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libde265 package and not the libde265 package as distributed by Ubuntu.
See How to fix? for Ubuntu:20.04 relevant fixed versions and status.
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.