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Vulnerability record · CVE-2022-23547 · published 23 December 2022

CVE-2022-23547: Pjsip heap-based buffer overflow vulnerability

Pjsip · 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. 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.

9.8 CVSS 3.1 Critical EPSS 0.95% · top 40.5% CWE-122 · Heap-based buffer overflowCWE-125 · Out-of-bounds read
9.8CVSS 3.1 base score
0.95%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
9References
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. 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.

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

Affected products

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

References

LinkTags
https://github.com/pjsip/pjproject/commit/bc4812d31a67d5e2f973fbfaf950d6118226cf36 PatchThird Party Advisory
https://github.com/pjsip/pjproject/security/advisories/GHSA-9pfh-r8x4-w26w PatchThird Party Advisory
https://github.com/pjsip/pjproject/security/advisories/GHSA-cxwq-5g9x-x7fr PatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2023/08/msg00038.html
https://github.com/pjsip/pjproject/commit/bc4812d31a67d5e2f973fbfaf950d6118226cf36 PatchThird Party Advisory
https://github.com/pjsip/pjproject/security/advisories/GHSA-9pfh-r8x4-w26w PatchThird Party Advisory
https://github.com/pjsip/pjproject/security/advisories/GHSA-cxwq-5g9x-x7fr PatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2023/08/msg00038.html
https://lists.debian.org/debian-lts-announce/2024/09/msg00030.html

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2022-39244Pjsip classic buffer overflow vulnerabilityPJSIP is a free and open source multimedia communication library written in C. In versions of PJSIP prior to 2.13 the PJSIP parser, PJMEDIA RTP decod…EPSS 1.2%9.8CVE-2022-24786Pjsip out-of-bounds read vulnerabilityPJSIP is a free and open source multimedia communication library written in C. PJSIP versions 2.12 and prior do not parse incoming RTCP feedback RPSI…EPSS 2.0%8.7CVE-2026-29068Pjsip stack-based buffer overflow vulnerabilityPJSIP is a free and open source multimedia communication library written in C. Prior to version 2.17, there is a stack buffer overflow vulnerability …EPSS 0.53%8.7CVE-2026-28799Pjsip use after free vulnerabilityPJSIP is a free and open source multimedia communication library written in C. Prior to version 2.17, a heap use-after-free vulnerability exists in P…EPSS 0.49%8.5CVE-2026-40614Pjsip heap-based buffer overflow vulnerabilityPJSIP is a free and open source multimedia communication library written in C. In 2.16 and earlier, there is a buffer overflow when decoding Opus aud…EPSS 0.37%8.4CVE-2026-32945Pjsip heap-based buffer overflow vulnerabilityPJSIP is a free and open source multimedia communication library written in C. Versions 2.16 and below have a Heap-based Buffer Overflowvulnerability…EPSS 0.54%8.1CVE-2026-40892Pjsip stack-based buffer overflow vulnerabilityPJSIP is a free and open source multimedia communication library written in C. In 2.16 and earlier, a stack buffer overflow exists in pjsip_auth_crea…EPSS 0.60%8.1CVE-2026-26967Pjsip heap-based buffer overflow vulnerabilityPJSIP is a free and open source multimedia communication library written in C. In versions 2.16 and below, there is a critical Heap-based Buffer Over…EPSS 0.39%

Source: NIST National Vulnerability Database (record CVE-2022-23547), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.