CVE-2022-23547: Pjsip

Critical severity, CVSS 9.8. EPSS: 1% chance of exploitation in the next 30 days.

PJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. This issue is similar to GHSA-9pfh-r8x4-w26w. Possible buffer overread when parsing a certain STUN message. The vulnerability affects applications that uses STUN including PJNATH and PJSUA-LIB. The patch is available as commit in the master branch.

Affected products

• Pjsip Pjsip: before 2.13.1 (fixed in 2.13.1)

Published 2022-12-23. Last modified 2026-06-17.