CVE-2025-20365: Cisco Access Point Software Intermittent IPv6 Gateway Change Vulnerability
A vulnerability in the IPv6 Router Advertisement (RA) packet processing of Cisco Access Point Software could allow an unauthenticated, adjacent attacker to modify the IPv6 gateway on an affected device. This vulnerability is due to a logic error in the processing of IPv6 RA packets that are received from wireless clients. An attacker could exploit this vulnerability by associating to a wireless network and sending a series of crafted IPv6 RA packets. A successful exploit could allow the attacker to temporarily change the IPv6 gateway of an affected device. This could also lead to intermittent packet loss for any wireless clients that are associated with the affected device.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-20365?
CVE-2025-20365 has a high severity level due to its potential impact on the device's network configuration.
How do I fix CVE-2025-20365?
To mitigate CVE-2025-20365, ensure that your Cisco Access Point Software is updated to the latest version provided by Cisco.
Who is affected by CVE-2025-20365?
CVE-2025-20365 affects users of Cisco Access Point Software with vulnerable configurations that process IPv6 Router Advertisement packets.
What type of attack does CVE-2025-20365 enable?
CVE-2025-20365 enables an unauthenticated, adjacent attacker to modify the IPv6 gateway on the affected Cisco devices.
When was CVE-2025-20365 disclosed?
CVE-2025-20365 was disclosed in 2025, highlighting the importance of timely updates to prevent exploitation.