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CVE-2022-23547

Heap buffer overflow in pjproject when decoding STUN message

Published: Dec 23, 2022Updated: Nov 4, 2025 Sources: CVE List NVDCWE-122
NVD MITRE
6.5CVSSMEDIUM
EPSS Score
0.9%
Top 43.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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 Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:LI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-122CWE-125

Affected Products

pjprojectpjsip
Mixed
Communications / voip-telephony
pjsippjsip
Mixed
Communications / voip-telephony
pjsiposs-projectCommunicationsaka pjproject, pjmedia-video, pjsip

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Collection
Privilege Escalation
View detailed technique mapping

References

https://github.com/pjsip/pjproject/security/advisories/GHSA-cxwq-5g9x-x7fr
github.com
https://github.com/pjsip/pjproject/security/advisories/GHSA-9pfh-r8x4-w26w
github.com
https://github.com/pjsip/pjproject/commit/bc4812d31a67d5e2f973fbfaf950d6118226cf36
github.com
and 2 more references View all →

Timeline

Published
Dec 23, 2022
Last Updated
Nov 4, 2025

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