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CVE-2022-21722

30
FAUCET Score

CVE-2022-21722 is a critical out-of-bounds read vulnerability affecting PJSIP versions 2.11.1 and prior, specifically impacting users of PJMEDIA that process incoming RTP/RTCP packets. This flaw, rated 9.1 CVSS (Critical), allows unauthenticated attackers to remotely trigger the vulnerability with low attack complexity, potentially leading to high impact on confidentiality and availability. While a patch is available, there are no known workarounds, and there is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.11.1CPE matchmatch criteria
cpe:2.3:a:teluu:pjsip:*:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.1CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.40%
Probability of exploitation in next 30 days
EPSS Percentile
82.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0240 is in the 72nd percentile among its peer group of 36,897 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/22af44e68a0c7d190ac1e25075e1382f77e9397a
PatchThird Party Advisory
github.com / pjsip/pjproject/security/advisories/GHSA-m66q-q64c-hv36
PatchThird Party Advisory
lists.debian.org / debian-lts-announce/2022/03/msg00035.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2022/11/msg00021.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2023/08/msg00038.html
security.gentoo.org / glsa/202210-37
Third Party Advisory
debian.org / security/2022/dsa-5285
Third Party Advisory