CVE-2022-39269: Teluu Pjsip

Critical severity, CVSS 9.1. EPSS: 0.7% chance of exploitation in the next 30 days.

PJSIP is a free and open source multimedia communication library written in C. When processing certain packets, PJSIP may incorrectly switch from using SRTP media transport to using basic RTP upon SRTP restart, causing the media to be sent insecurely. The vulnerability impacts all PJSIP users that use SRTP. The patch is available as commit d2acb9a in the master branch of the project and will be included in version 2.13. Users are advised to manually patch or to upgrade. There are no known workarounds for this vulnerability.

Affected products

• Teluu Pjsip: from 2.11, before 2.13 (fixed in 2.13)

Published 2022-10-06. Last modified 2026-06-17.