CVE-2022-39269 CRITICAL

CVE-2022-39269: Media transport downgrade from the secure version (SRTP) to non-secure (RTP) in pjsip

Vendor Pjsip
Product pjproject
Weakness CWE-319 · Cleartext transmission
Published October 6, 2022
Last update April 23, 2025
View on NVD All CVEs

CVSS base score

9.1/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

October 6, 2022 CVE published
April 23, 2025 Record updated