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CVE-2022-23547

29
FAUCET Score

CVE-2022-23547 is a critical buffer overread vulnerability in PJSIP, an open-source multimedia communication library, specifically affecting applications utilizing STUN such as PJNATH and PJSUA-LIB. This flaw, similar to GHSA-9pfh-r8x4-w26w, occurs when parsing a specially crafted STUN message. With a CVSS score of 9.8 (CRITICAL), it presents a severe risk due to its network-based attack vector, low attack complexity, and potential for complete compromise of confidentiality, integrity, and availability. While a patch is available, there is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.13.1CPE matchmatch criteria
cpe:2.3:a:pjsip:pjsip:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
4.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.95%
Probability of exploitation in next 30 days
EPSS Percentile
57.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0095 is in the 42nd percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

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