Vulnerability · Published Mar 6, 2026 · Assigned by GitHub_M

CVE-2026-29068PJSIP: Stack buffer overflow in Opus codec parser

High 8.7

In plain English

A high-severity stack buffer overflow in pjproject from pjsip. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 30% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)8.7High
Exploit odds (30 days)0.4%top 70.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

PJSIP is a free and open source multimedia communication library written in C. Prior to version 2.17, there is a stack buffer overflow vulnerability when pjmedia-codec parses an RTP payload contain more frames than the caller-provided frames can hold. This issue has been patched in version 2.17.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.24pjproject2.17-r0ALPINE-CVE-2026-29068
Debian:14asterisk1:22.10.0+dfsg+~cs6.17.60671434-1DEBIAN-CVE-2026-29068

Affected products (as reported)

VendorProductVersions
pjsip pjproject < 2.17

Weakness: CWE-121 · Vector: 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

References