CVE-2025-54995

6.5 MEDIUM
Published: August 28, 2025 Modified: November 03, 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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/asterisk/asterisk/pull/1405
Source: security-advisories@github.com
Issue Tracking
https://github.com/asterisk/asterisk/pull/1406
Source: security-advisories@github.com
Issue Tracking
https://github.com/asterisk/asterisk/security/advisories/GHSA-557q-795j-wfx2
Source: security-advisories@github.com
Exploit Vendor Advisory

6 reference(s) from NVD

Quick Stats

CVSS v3 Score
6.5 / 10.0
EPSS (Exploit Probability)
0.6%
69th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

sangoma