Asterisk is an open source private branch exchange and telephony toolkit. Prior to versions 18.26.4 and 18.9-cert17, RTP UDP ports and internal resources can leak due to a lack of session termination. This could result in leaks and resource exhaustion. This issue has been patched in versions 18.26.4 and 18.9-cert17.
| Date Added | Due Date | Vulnerability Name | Required Action |
|---|---|---|---|
| N/A |
| Type | Version | Base score | Base severity | Vector |
|---|---|---|---|---|
| Secondary | 3.1 | 6.5 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| Hyperlink | Source | Resource |
|---|---|---|
| https://github.com/asterisk/asterisk/commit/0278f5bde14565c6838a6ec39bc21aee0cde56a9 | security-advisories@github.com | Patch |
| https://github.com/asterisk/asterisk/commit/eafcd7a451dcd007dddf324ac37dd55a4808338d | security-advisories@github.com | Patch |
| https://github.com/asterisk/asterisk/pull/1405 | security-advisories@github.com | Issue Tracking |
| https://github.com/asterisk/asterisk/pull/1406 | security-advisories@github.com | Issue Tracking |
| https://github.com/asterisk/asterisk/security/advisories/GHSA-557q-795j-wfx2 | security-advisories@github.com | Exploit Vendor Advisory |
| https://lists.debian.org/debian-lts-announce/2025/10/msg00006.html | af854a3a-2127-422b-91ae-364da2661108 | N/A |