What is CVE-2022-24764?

CVE-2022-24764 is a high-severity vulnerability in Pjsip Pjproject, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2022-03-22.

How severe is CVE-2022-24764?

High severity. CVSS v3 base score is 7.5 out of 10.

Buffer overflow in Pjsip Pjproject

CVE-2022-24764

PJSIP is a free and open source multimedia communication library written in C. Versions 2.12 and prior contain a stack buffer overflow vulnerability that affects PJSUA2 users or users that call the API `pjmedia_sdp_print(), pjmedia_sdp_media_print()`. Applications that do not use PJSUA2 and do not directly call `pjmedia_sdp_print()` or `pjmedia_sdp_media_print()` should not be affected. A patch is available on the `master` branch of the `pjsip/pjproject` GitHub repository. There are currently no known workarounds.

Vulnerability class: Buffer Overflow

Published 2022-03-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.023 (82.9th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 82.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.024 · newest: 0.023 · change: -0.001

Affected products

Pjsip Pjproject — versions <= 2.12
Teluu Pjsip
Debian Linux — versions 9.0, 10.0

Weakness classification (CWE)

References

github.com/pjsip/pjproject/security/advisories/GHSA-f5qg-pqcg-765m (Patch, Third Party Advisory)
github.com/pjsip/pjproject/commit/560a1346f87aabe126509bb24930106dea292b00 (Patch, Third Party Advisory)
lists.debian.org/debian-lts-announce/2022/03/msg00035.html (mailing-list, Mailing List, Third Party Advisory)
security.gentoo.org/glsa/202210-37 (vendor-advisory, Third Party Advisory)
lists.debian.org/debian-lts-announce/2022/11/msg00021.html (mailing-list, Mailing List, Third Party Advisory)
www.debian.org/security/2022/dsa-5285 (vendor-advisory, Third Party Advisory)
lists.debian.org/debian-lts-announce/2023/08/msg00038.html (mailing-list)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2022-24764?: CVE-2022-24764 is a high-severity vulnerability in Pjsip Pjproject, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2022-03-22.
How severe is CVE-2022-24764?: High severity. CVSS v3 base score is 7.5 out of 10.