Input validation error in Cisco Firewall Threat Defense (FTD) - CVE-2023-20083
Published: November 2, 2023
Vulnerability identifier: #VU82684
CSH Severity: High
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-20083
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper error checking when parsing fields in ICMPv6 inspection when configured with the Snort 2 detection engine. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
Affected software
Cisco Firewall Threat Defense (FTD)
How to mitigate CVE-2023-20083
Install update from vendor's website.
Cisco Firewall Threat Defense (FTD) - addressed in versions 2.9.18.6, 2.9.20.4, 7.0.6, 7.2.4