Detections
Analytics
Cisco Access Point Software Intermittent IPv6 Gateway Change (cisco-sa-ap-ipv6-gw-tUAzpn9O)
medium Nessus Plugin ID 266404
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Synopsis
The remote device is missing a vendor-supplied security patch.Description
According to its self-reported version, Cisco Access Point Software Intermittent IPv6 Gateway Change is affected by a 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. (CVE-2025-20365)
Please see the included Cisco BIDs and Cisco Security Advisory for more information.
Solution
Upgrade to the relevant fixed version referenced in Cisco bug ID CSCwm13005See Also
Plugin Details
Severity: Medium
ID: 266404
File Name: cisco-sa-ap-ipv6-gw-tUAzpn9O.nasl
Version: 1.2
Type: combined
Family: CISCO
Published: 10/2/2025
Updated: 10/3/2025
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Low
Score: 2.9
CVSS v2
Risk Factor: Low
Base Score: 3.3
Temporal Score: 2.4
Vector: CVSS2#AV:A/AC:L/Au:N/C:N/I:P/A:N
CVSS Score Source: CVE-2025-20365
CVSS v3
Risk Factor: Medium
Base Score: 4.3
Temporal Score: 3.8
Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:cisco:ios_xe
Required KB Items: Host/Cisco/IOS-XE/Version
Exploit Ease: No known exploits are available
Patch Publication Date: 9/24/2025
Vulnerability Publication Date: 9/24/2025
Reference Information
CVE: CVE-2025-20365