CVE-2025-54995
Asterisk remotely exploitable leak of RTP UDP ports and internal resources
- State
- Published
- Severity
- 6.5 Medium
- Published
- Aug 28, 2025
- Updated
- Nov 3, 2025
- Reserved
- Aug 4, 2025
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | GitHub_M |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
asteriskasterisk |
|
References
- https://github.com/asterisk/asterisk/security/advisories/GHSA-557q-795j-wfx2
- https://github.com/asterisk/asterisk/pull/1405
- https://github.com/asterisk/asterisk/pull/1406
- https://github.com/asterisk/asterisk/commit/0278f5bde14565c6838a6ec39bc21aee0cde56a9
- https://github.com/asterisk/asterisk/commit/eafcd7a451dcd007dddf324ac37dd55a4808338d
- https://lists.debian.org/debian-lts-announce/2025/10/msg00006.html
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