PJSIP is a free and open source multimedia communication library written in C.

Code

The project this record applies to. Exploit listings stay in References.

• Repository · github.com

Timeline

Detection, updates, and resolution for this record.

1. Mar 6, 2026 · NIST NVD

   Detected

   PJSIP is a free and open source multimedia communication library written in C. Prior to version 2.17, a heap use-after-free vulnerability exists in PJSIP's event subscription framework (evsub.c) that is triggered during presence unsubscription (SUBSCRIBE with Expires=0). This issue has been patched in version 2.17.

2. Jun 17, 2026 · NIST NVD

   Updated

   PJSIP is a free and open source multimedia communication library written in C. Prior to version 2.17, a heap use-after-free vulnerability exists in PJSIP's event subscription framework (evsub.c) that is triggered during presence unsubscription (SUBSCRIBE with Expires=0). This issue has been patched in version 2.17.

Affected

• cpe pjsip/pjsipversion unspecified

Sources

• CVE.orgVulnerability recordCVE-2026-28799

  Official CVE identifier

  cve.org
• NIST NVDVulnerability recordCVE-2026-28799

  PJSIP is a free and open source multimedia communication library written in C. Prior to version 2.17, a heap use-after-free vulnerability exists in PJSIP's event subscription framework (evsub.c) that is triggered during presence unsubscription (SUBSCRIBE with Expires=0). This iss

  nvd.nist.gov

References

• Patch · github.com
• Patch · github.com