CVE-2025-54995

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 v3.1

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

EPSS

0.48% chance of exploitation in the next 30 days, 40th percentile

Published

2025-08-28

Updated

2025-11-03

Proof-of-concept exploits (1)

• asterisk/asterisk/security/advisories/GHSA-557q-795j-wfx2

References

• CVE Record
• NVD entry

Related

• CVE-2024-35190
• CVE-2024-42365
• CVE-2025-47779
• CVE-2025-47780
• CVE-2025-49832
• CVE-2025-5499