CVE-2026-88373
highlibde265 commit 4d45a6b contains a NULL pointer dereference vulnerability in the NAL parsing path.
libde265 commit 4d45a6b contains a NULL pointer dereference vulnerability in the NAL parsing path. When de265_push_NAL() is called with a zero-length NAL unit, the resulting NAL_unit may retain a NULL backing buffer, which is subsequently passed as the destination argument to memcpy() in NAL_unit::set_data(). Although the copy length is zero, this violates the nonnull requirement of memcpy() and results in undefined behavior, causing process termination in UBSan-instrumented builds and denial of service.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/strukturag/libde265/commit/f8d324914e43d92af23614f22959cf9eee7bf9ea cve@mitre.org
- https://github.com/strukturag/libde265/issues/534 cve@mitre.org
- https://github.com/strukturag/libde265/issues/534 134c704f-9b21-4f2e-91b3-4a467353bcc0