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CVE-2025-54995mediumCWE-1286CWE-400

Asterisk remotely exploitable leak of RTP UDP ports and internal resources

13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6.5epss 0.5%
exploitation probability
0.5%top 59% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products
asterisk · asterisk
References
https://github.com/asterisk/asterisk/commit/0278f5bde14565c6838a6ec39bc21aee0cde56a9https://github.com/asterisk/asterisk/commit/eafcd7a451dcd007dddf324ac37dd55a4808338dhttps://github.com/asterisk/asterisk/pull/1405https://github.com/asterisk/asterisk/pull/1406https://github.com/asterisk/asterisk/security/advisories/GHSA-557q-795j-wfx2https://lists.debian.org/debian-lts-announce/2025/10/msg00006.html