Vulnerability in Cisco Adaptive Security Appliance (Asa) Software
CVE-2025-20239
A vulnerability in the Internet Key Exchange Version 2 (IKEv2) feature of Cisco IOS Software, IOS XE Software, Secure Firewall Adaptive Security Appliance (ASA) Software, and Secure Firewall Threat Defense (FTD) Software could allow an una…
EPSS: 0.002 (35.8th 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 Adaptive Security Appliance (Asa) Software — versions 9.8.1, 9.8.1.5, 9.8.1.7
- Cisco Firepower Threat Defense Software — versions 6.2.3, 6.2.3.1, 6.2.3.2
- Cisco Ios Xe Software — versions 3.14.0S, 3.14.1S, 3.14.2S
- Cisco Ios — versions 15.2(4)E, 15.2(4)E1, 15.2(4)E2
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2025-20239?
- CVE-2025-20239 is a high-severity vulnerability in Cisco Adaptive Security Appliance (Asa) Software, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 8.6/10. Published 2025-08-14.
- How severe is CVE-2025-20239?
- High severity. CVSS v3 base score is 8.6 out of 10.