Heap-based buffer overflow in libde265 - CVE-2026-49346
Published: September 4, 2026
Vulnerability identifier: #VU146892
CSH Severity: Medium
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-49346
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service or modify data.
The vulnerability exists due to a heap-based buffer overflow caused by an integer overflow in de265_image_get_buffer when processing SPS dimensions. A remote attacker can supply a crafted HEVC bitstream to cause a denial of service or modify data.
User interaction is required.
Affected software
libde265
How to mitigate CVE-2026-49346
Install security update from vendor's website.
libde265 - update to 1.1.0