What is CVE-2025-20365?

CVE-2025-20365 is a medium-severity vulnerability in Cisco Aironet Access Point Software (Ios Xe Controller), classified under Improper Verification of Source of a Communication Channel. CVSS score: 4.3/10. Published 2025-09-24.

How severe is CVE-2025-20365?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Cisco Aironet Access Point Software (Ios Xe Controller)

CVE-2025-20365

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 lo…

EPSS: 0.000 (6.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

Affected products

Cisco Aironet Access Point Software (Ios Xe Controller) — versions 16.10.1e, 16.10.1, 17.1.1t

Weakness classification (CWE)

CWE-940 — Improper Verification of Source of a Communication Channel

References

cisco-sa-ap-ipv6-gw-tUAzpn9O

Frequently asked questions

What is CVE-2025-20365?: CVE-2025-20365 is a medium-severity vulnerability in Cisco Aironet Access Point Software (Ios Xe Controller), classified under Improper Verification of Source of a Communication Channel. CVSS score: 4.3/10. Published 2025-09-24.
How severe is CVE-2025-20365?: Medium severity. CVSS v3 base score is 4.3 out of 10.