Input validation error in Cisco Systems, Inc products - CVE-2025-20154
Published: May 9, 2025
Vulnerability identifier: #VU108835
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2025-20154
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Cisco Systems, Inc
Affected software:
Cisco IOS XE
Cisco IOS XR
Cisco IOS Software
Cisco IOS XE
Cisco IOS XR
Cisco IOS Software
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in the Two-Way Active Measurement Protocol (TWAMP) server feature. A remote attacker can send specially crafted TWAMP control packets and perform a denial of service (DoS) attack.
How to mitigate CVE-2025-20154
Install updates from vendor's website.