CVE-2025-20202: Input Validation
A vulnerability in Cisco IOS XE Wireless Controller Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient input validation of access point (AP) Cisco Discovery Protocol (CDP) neighbor reports when they are processed by the wireless controller. An attacker could exploit this vulnerability by sending a crafted CDP packet to an AP. A successful exploit could allow the attacker to cause an unexpected reload of the wireless controller that is managing the AP, resulting in a DoS condition that affects the wireless network.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-20202?
CVE-2025-20202 has been classified as a high severity vulnerability.
How do I fix CVE-2025-20202?
To fix CVE-2025-20202, apply the latest patches provided by Cisco for the IOS XE Wireless Controller Software.
Who is affected by CVE-2025-20202?
CVE-2025-20202 affects devices running Cisco IOS XE Wireless Controller Software, particularly those within the Catalyst 9000 Family.
What exploit does CVE-2025-20202 enable?
CVE-2025-20202 enables an unauthenticated, adjacent attacker to cause a denial of service condition on the affected device.
Is authentication required to exploit CVE-2025-20202?
No, CVE-2025-20202 can be exploited by an unauthenticated attacker.