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Vulnerability record · CVE-2022-23537 · published 20 December 2022

CVE-2022-23537: Teluu pjsip heap-based buffer overflow vulnerability

Teluu · Pjsip

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. Buffer overread is possible when parsing a specially crafted STUN message with unknown attribute. The vulnerability affects applications that uses STUN including PJNATH and PJSUA-LIB. The patch is available as a commit in the master branch (2.13.1).

9.8 CVSS 3.1 Critical EPSS 1.0% · top 37.8% CWE-122 · Heap-based buffer overflowCWE-125 · Out-of-bounds read
9.8CVSS 3.1 base score
1.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
7References
17 Jun 2026Last modified by NVD

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. Buffer overread is possible when parsing a specially crafted STUN message with unknown attribute. The vulnerability affects applications that uses STUN including PJNATH and PJSUA-LIB. The patch is available as a commit in the master branch (2.13.1).

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

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/pjsip/pjproject/commit/d8440f4d711a654b511f50f79c0445b26f9dd1e1 PatchThird Party Advisory
https://github.com/pjsip/pjproject/security/advisories/GHSA-9pfh-r8x4-w26w PatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2023/08/msg00038.html Mailing ListThird Party Advisory
https://github.com/pjsip/pjproject/commit/d8440f4d711a654b511f50f79c0445b26f9dd1e1 PatchThird Party Advisory
https://github.com/pjsip/pjproject/security/advisories/GHSA-9pfh-r8x4-w26w PatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2023/08/msg00038.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2024/09/msg00030.html

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Source: NIST National Vulnerability Database (record CVE-2022-23537), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.