medium6.5
CVE-2025-54995
Asterisk is an open source private branch exchange and telephony toolkit.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Sangoma | Asterisk | before 18.26.4 |
| Sangoma | Certified Asterisk | before 18.9 Version 18.9 |
Weakness classification
References
- NVD record
- CVE.org record
- https://github.com/asterisk/asterisk/commit/0278f5bde14565c6838a6ec39bc21aee0cde56a9
- https://github.com/asterisk/asterisk/commit/eafcd7a451dcd007dddf324ac37dd55a4808338d
- https://github.com/asterisk/asterisk/pull/1405
- https://github.com/asterisk/asterisk/pull/1406
- https://github.com/asterisk/asterisk/security/advisories/GHSA-557q-795j-wfx2
- https://lists.debian.org/debian-lts-announce/2025/10/msg00006.html