CVE-2022-23547

Name: CVE-2022-23547
Creator: NVD / NIST
Published: 2022-12-23T15:15:14.917+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.95%

Last modified Jun 17, 2026

CVE-2022-23547 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. EPSS estimates a 0.95% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

0.95%

56.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Pjsip	Pjsip	< 2.13.1

References

https://github.com/pjsip/pjproject/commit/bc4812d31a67d5e2f973fbfaf950d6118226cf36Patch, Third Party Advisory
https://github.com/pjsip/pjproject/security/advisories/GHSA-9pfh-r8x4-w26wPatch, Third Party Advisory
https://github.com/pjsip/pjproject/security/advisories/GHSA-cxwq-5g9x-x7frPatch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/08/msg00038.html
https://github.com/pjsip/pjproject/commit/bc4812d31a67d5e2f973fbfaf950d6118226cf36Patch, Third Party Advisory
https://github.com/pjsip/pjproject/security/advisories/GHSA-9pfh-r8x4-w26wPatch, Third Party Advisory
https://github.com/pjsip/pjproject/security/advisories/GHSA-cxwq-5g9x-x7frPatch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/08/msg00038.html
https://lists.debian.org/debian-lts-announce/2024/09/msg00030.html

Timeline

Published: Dec 23, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-23547?

How severe is CVE-2022-23547?

CVE-2022-23547 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.95% probability of exploitation in the next 30 days.

How do I fix CVE-2022-23547?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-23547?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST