asterisk: PJSIP is a free and open source multimedia communication library written in C
CVE-2026-28799 is fixed in asterisk on 1 platform by DEBIAN-CVE-2026-28799 (version 1:22.10.0+dfsg+~cs6.17.60671434-1), released March 6, 2026. It is not reported as exploited. Patch Radar priority: High.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| asterisk · Debian 14 | 1:22.10.0+dfsg+~cs6.17.60671434-1 | DEBIAN-CVE-2026-28799 | Mar 6, 2026 |
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