CVE-2025-54995

Asterisk remotely exploitable leak of RTP UDP ports and internal resources

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.

References

Link	Tags
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

Frequently Asked Questions

What is the severity of CVE-2025-54995?: CVE-2025-54995 has been scored as a medium severity vulnerability.
How to fix CVE-2025-54995?: To fix CVE-2025-54995, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-54995 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2025-54995 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-54995?: CVE-2025-54995 affects asterisk asterisk.

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Description

Category

CWE-400 – Uncontrolled Resource Consumption

References

Frequently Asked Questions