PJSIP is a free and open source multimedia communication library written in C. A buffer overflow vulnerability in versions 2.12 and prior affects applications that use PJSIP DNS resolution. It doesn't affect PJSIP users who utilize an external resolver. This vulnerability is related to CVE-2023-27585. The difference is that this issue is in parsing the query record `parse_rr()`, while the issue in CVE-2023-27585 is in `parse_query()`. A patch is available in the `master` branch of the `pjsip/pjproject` GitHub repository. A workaround is to disable DNS resolution in PJSIP config (by setting `nameserver_count` to zero) or use an external resolver instead.
Cite this page
CVE-2022-24793. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2022-24793
Use CWE-120, Pjsip vendor hub and Pjsip product page to widen CVE-2022-24793 into its surrounding weakness, vendor, and product context.
Compare it with CVE-2022-39269, CVE-2026-29068 and CVE-2026-28799 for nearby disclosures in the same product family.