Vulnerability in Cisco Ios Xe Software
CVE-2026-20012
A vulnerability in the Internet Key Exchange version 2 (IKEv2) feature of Cisco IOS Software, Cisco IOS XE Software, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software, and Cisco Secure Firewall Threat Defense (FTD) Software…
EPSS: 0.001 (35.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.
Affected products
- Cisco Ios Xe Software — versions 3.5.0E, 3.5.1E, 3.5.2E
- Cisco Secure Firewall Adaptive Security Appliance (Asa) Software — versions 9.8.1, 9.8.1.5, 9.8.1.7
- Cisco Secure Firewall Threat Defense (Ftd) Software — versions 6.2.3, 6.2.3.1, 6.2.3.2
- Cisco Ios — versions 15.2(1)S, 15.2(2)S, 15.2(1)S1
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-20012?
- CVE-2026-20012 is a high-severity vulnerability in Cisco Ios Xe Software, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 8.6/10. Published 2026-03-25.
- How severe is CVE-2026-20012?
- High severity. CVSS v3 base score is 8.6 out of 10.