#VU118128 Incorrect comparison in Cisco Identity Services Engine (ISE) - CVE-2025-20343

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Main Vulnerability Database Vulnerabilities #VU118128

#VU118128 Incorrect comparison in Cisco Identity Services Engine (ISE) - CVE-2025-20343

Published: November 5, 2025


Vulnerability identifier: #VU118128
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2025-20343
CWE-ID: CWE-697
Exploitation vector: Adjecent network
Exploit availability: No public exploit available
Vulnerable software:
Cisco Identity Services Engine (ISE)
Software vendor:
Cisco Systems, Inc

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a logic error when processing a RADIUS access request for a MAC address. A remote attacker on the local network can send a specific sequence of multiple crafted RADIUS access request messages and perform a denial of service (DoS) attack.


Remediation

Install updates from vendor's website.

External links