Vulnerability Description
PJSIP is a free and open source multimedia communication library written in C. Versions 2.16 and below have a Heap-based Buffer Overflowvulnerability in the DNS parser's name length handler. Thisimpacts applications using PJSIP's built-in DNS resolver, such as those configured with pjsua_config.nameserver or UaConfig.nameserver in PJSUA/PJSUA2. It does not affect users who rely on the OS resolver (e.g., getaddrinfo()) by not configuring a nameserver, or those using an external resolver via pjsip_resolver_set_ext_resolver(). This issue is fixed in version 2.17. For users unable to upgrade, a workaround is to disable DNS resolution in the PJSIP config (by setting nameserver_count to zero) or to use an external resolver implementation instead.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Pjsip | Pjsip | < 2.17 |
Related Weaknesses (CWE)
References
- https://github.com/pjsip/pjproject/commit/5311aee398ae9d623829a6bad7b679a193c9e1Patch
- https://github.com/pjsip/pjproject/security/advisories/GHSA-jr2p-p2w4-rr9qMitigationPatchVendor Advisory
FAQ
What is CVE-2026-32945?
CVE-2026-32945 is a vulnerability with a CVSS score of 9.8 (CRITICAL). PJSIP is a free and open source multimedia communication library written in C. Versions 2.16 and below have a Heap-based Buffer Overflowvulnerability in the DNS parser's name length handler. Thisimpac...
How severe is CVE-2026-32945?
CVE-2026-32945 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-32945?
Check the references section above for vendor advisories and patch information. Affected products include: Pjsip Pjsip.