Heap-based buffer overflow in pjsip - CVE-2026-26967
Published: April 14, 2026
Vulnerability identifier: #VU125906
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-26967
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.
The vulnerability exists due to heap-based buffer overflow in the H.264 unpacketizer when processing malformed SRTP packets. A remote attacker can send a specially crafted SRTP packet to cause a denial of service.
This issue affects applications that receive video using H.264.
Affected software
pjsip
How to mitigate CVE-2026-26967
Install security update from vendor's website.
pjsip - update to 2.17