Skip to main content
CloudKey
English Français
Request a demo

Build advisory

Cisco ASA 9.9(2)85: known CVEs & fixed releases

1 CVE affects this build · highest CVSS 5.9 · 1 build behind the latest 9.9(2)235 · updated 2026-06-23

  • MEDIUM
    CVE-2023-20081

    CVE-2023-20081

    A vulnerability in the IPv6 DHCP (DHCPv6) client module of Cisco Adaptive Security Appliance (ASA) Software, Cisco Firepower Threat Defense (FTD) Software, Cisco IOS Software, and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient validation of DHCPv6 messages. An attacker could exploit this vulnerability by sending crafted DHCPv6 messages to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition. Note: To successfully exploit this vulnerability, the attacker would need to either control the DHCPv6 server or be in a man-in-the-middle position.

    CVSS
    5.9
    EPSS
    1%
    Published
    2023-03-23
    NVD ↗Cisco ↗

Stop checking versions by hand

Is your whole fleet exposed, not just this Cisco ASA?

VulnMonitor reconciles every advisory against your real inventory and ranks what matters by actual exploitation (CISA KEV, EPSS), not raw CVSS. New CVE hits your gear, it is on your queue with the fix attached.

Start free How VulnMonitor works

Free to start · no credit card

Other Cisco ASA versions