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

Published Mar 6, 2026
·
Updated

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 Software

2 affected components
PJSIP PJSIP<2.17
PJSIP PJSIP<2.17

Remediation

Patch Available

https://github.com/pjsip/pjproject/commit/6c9024511bf5307ff72efde1f90c9a2a226d8967

Patch Available

https://github.com/pjsip/pjproject/security/advisories/GHSA-pqww-jrxr-457f

Event History

Mar 6, 2026
CVE Published
via MITRE·06:36 AM
Data Sourced
via MITRE·06:36 AM
DescriptionWeakness
Data Sourced
via NVD·07:16 AM
RemedyDescriptionSeverityWeaknessAffected Software
May 22, 58164
Event
via FIRST·07:51 PM
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Frequently Asked Questions

1

What is the severity of CVE-2026-29068?

CVE-2026-29068 is classified as a critical severity vulnerability due to the potential for remote code execution through a stack buffer overflow.

2

How do I fix CVE-2026-29068?

To mitigate CVE-2026-29068, upgrade PJSIP to version 2.17 or later where the vulnerability has been patched.

3

What versions of PJSIP are affected by CVE-2026-29068?

CVE-2026-29068 affects versions of PJSIP prior to version 2.17.

4

What is the nature of the vulnerability in CVE-2026-29068?

CVE-2026-29068 is a stack buffer overflow vulnerability in the Opus codec parser of the PJSIP library.

5

Can CVE-2026-29068 be exploited remotely?

Yes, CVE-2026-29068 can be exploited remotely through specially crafted RTP payloads.

Company

Resources

Contact

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