Vulnerability in Cisco Adaptive Security Appliance Software
CVE-2023-20086
A vulnerability in ICMPv6 processing of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. This vulnerability is due to improper processing of ICMPv6 messages. An attacker could exploit this vulnerability by sending crafted ICMPv6 messages to a targeted Cisco ASA or FTD system with IPv6 enabled. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.
EPSS: 0.007 (47.5th 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_software — versions 9.8.1, 9.8.1.5, 9.8.1.7
- 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 Firepower_threat_defense — versions 6.2.3, 6.2.3.1, 6.2.3.2
- Cisco Secure_firewall_threat_defense — versions 6.2.3, 6.2.3.1, 6.2.3.2
Weakness classification (CWE)
References
- psirt@cisco.com (Vendor Advisory)
Frequently asked questions
- What is CVE-2023-20086?
- CVE-2023-20086 is a high-severity vulnerability in Cisco Adaptive Security Appliance Software, classified under CWE-248. CVSS score: 8.6/10. Published 2023-11-01.
- How severe is CVE-2023-20086?
- High severity. CVSS v3 base score is 8.6 out of 10.