Vulnerability in Cisco Nx-os Software
CVE-2025-20191
A vulnerability in the Switch Integrated Security Features (SISF) of Cisco IOS Software, Cisco IOS XE Software, Cisco NX-OS Software, and Cisco Wireless LAN Controller (WLC) AireOS Software could allow an unauthenticated, adjacent attacker…
EPSS: 0.001 (26.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.
Affected products
- Cisco Nx-os Software — versions 8.2(5), 7.3(5)D1(1), 8.4(2)
- Cisco Wireless Lan Controller (Wlc) — versions 8.10.112.0, 8.8.120.0, 8.3.143.0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2025-20191?
- CVE-2025-20191 is a high-severity vulnerability in Cisco Nx-os Software, classified under Buffer Access with Incorrect Length Value. CVSS score: 7.4/10. Published 2025-05-07.
- How severe is CVE-2025-20191?
- High severity. CVSS v3 base score is 7.4 out of 10.