SB2025092924 - Improper Verification of Source of a Communication Channel in Cisco Access Point Software
Published: September 29, 2025
Security Bulletin ID
SB2025092924
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper Verification of Source of a Communication Channel (CVE-ID: CVE-2025-20365)
CWE-ID: CWE-940 - Improper Verification of Source of a Communication Channel
CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to modify the IPv6 gateway on the target device.
The vulnerability exists due to a logic error in the processing of IPv6 RA packets that are received from wireless clients. A remote attacker on the local network can temporarily change the IPv6 gateway of the device.
Remediation
Install update from vendor's website.