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CVE

CWE

Training

CVE-2025-54995

Published: Aug 28, 2025

Modified: Nov 3, 2025

PUBLISHED

CVSS v3.1

6.5

MEDIUM

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.

Vendor	Product	Versions
asterisk	asterisk	affected `< 18.26.4` affected `< 18.9-cert17`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

References

https://github.com/asterisk/asterisk/security/advisories/GHSA-557q-795j-wfx2

x_refsource_CONFIRM

https://github.com/asterisk/asterisk/pull/1405

x_refsource_MISC

https://github.com/asterisk/asterisk/pull/1406

x_refsource_MISC

https://github.com/asterisk/asterisk/commit/0278f5bde14565c6838a6ec39bc21aee0cde56a9

x_refsource_MISC

https://github.com/asterisk/asterisk/commit/eafcd7a451dcd007dddf324ac37dd55a4808338d

x_refsource_MISC

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