CVE-2026-26967 - PJSIP has a Heap-based Buffer Overflow vulnerability in its H.264 unpacketizer

CVE ID : CVE-2026-26967 Published : Feb. 20, 2026, 1:15 a.m. | 1 hour, 27 minutes ago Description : PJSIP is a free and open source multimedia communication library written in C. In versions 2.16 and below, there is a critical Heap-based Buffer Overflow vulnerability in PJSIP's H.264 unpacketizer. The bug occurs when processing malformed SRTP packets, where the unpacketizer reads a 2-byte NAL unit size field without validating that both bytes are within the payload buffer bounds. The vulnerability affects applications that receive video using H.264. A patch is available at . Severity: 8.1 | HIGH Visit the link for more details, such as CVSS details, affected products, timeline, and more...