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Vulnerability record · CVE-2022-39244 · published 6 October 2022

CVE-2022-39244: Pjsip classic buffer overflow vulnerability

Pjsip · Pjsip

PJSIP 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 decoder, and PJMEDIA SDP parser are affeced by a buffer overflow vulnerability. Users connecting to untrusted clients are at risk. This issue has been patched and is available as commit c4d3498 in the master branch and will be included in releases 2.13 and later. Users are advised to upgrade. There are no known workarounds for this issue.

9.8 CVSS 3.1 Critical EPSS 1.2% · top 33.3% CWE-120 · Classic buffer overflow
9.8CVSS 3.1 base score
1.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
13References
17 Jun 2026Last modified by NVD

Description

PJSIP 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 decoder, and PJMEDIA SDP parser are affeced by a buffer overflow vulnerability. Users connecting to untrusted clients are at risk. This issue has been patched and is available as commit c4d3498 in the master branch and will be included in releases 2.13 and later. Users are advised to upgrade. There are no known workarounds for this issue.

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

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Related vulnerabilities

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

9.8CVE-2022-23547Pjsip heap-based buffer overflow vulnerabilityPJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, S…EPSS 0.95%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-2022-39244), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.