CVE-2026-33164: NULL Pointer Dereference in libde265

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-03-20 · updated 2026-06-17
Weakness: CWE-122

Description

libde265 is an open source implementation of the h.265 video codec. Prior to version 1.0.17, a malformed H.265 PPS NAL unit causes a segmentation fault in pic_parameter_set::set_derived_values(). This issue has been patched in version 1.0.17.

Affected products

strukturag libde265: before 1.0.17 — fixed in 1.0.17

How to fix

Upgrade to a fixed version: strukturag libde265 1.0.17. Check the vendor advisory for mitigations.

References

https://github.com/strukturag/libde265/releases/tag/v1.0.17
https://github.com/strukturag/libde265/security/advisories/GHSA-wqrf-6rf5-v78r

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