Secure Firewall ASA and FTD

CVE-2024-20412: A vulnerability in Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 1000, 2100, 3100, and…

A vulnerability in Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 1000, 2100, 3100, and 4200 Series could allow an unauthenticated, local attacker to access an affected system using static credentials.

Published

ExploitedNot in CISA KEV
Ransomware useNot reportedPer CISA
SeverityCRITICALCVSS 3.1 9.3
EPSS0.21%Chance of exploitation in 30 days
Public exploitNot tracked
FixNot yet

Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.

Affected and fixed versions

Product / branchFixed in
Cisco Firepower Threat Defense Software 7.1See the advisory
Cisco Firepower Threat Defense Software 7.1See the advisory
Cisco Firepower Threat Defense Software 7.1See the advisory
Cisco Firepower Threat Defense Software 7.1See the advisory
Cisco Firepower Threat Defense Software 7.2See the advisory
Cisco Firepower Threat Defense Software 7.2See the advisory
Cisco Firepower Threat Defense Software 7.2See the advisory
Cisco Firepower Threat Defense Software 7.2See the advisory
Cisco Firepower Threat Defense Software 7.2See the advisory
Cisco Firepower Threat Defense Software 7.2See the advisory
Cisco Firepower Threat Defense Software 7.2See the advisory
Cisco Firepower Threat Defense Software 7.2See the advisory
Cisco Firepower Threat Defense Software 7.2See the advisory
Cisco Firepower Threat Defense Software 7.2See the advisory
Cisco Firepower Threat Defense Software 7.2See the advisory
Cisco Firepower Threat Defense Software 7.2See the advisory
Cisco Firepower Threat Defense Software 7.3See the advisory
Cisco Firepower Threat Defense Software 7.3See the advisory
Cisco Firepower Threat Defense Software 7.3See the advisory
Cisco Firepower Threat Defense Software 7.3See the advisory
Cisco Firepower Threat Defense Software 7.4See the advisory
Cisco Firepower Threat Defense Software 7.4See the advisory
Cisco Firepower Threat Defense Software 7.4See the advisory

Always confirm against the vendor advisory, which lists every fixed hotfix.

What it is

A vulnerability in Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 1000, 2100, 3100, and 4200 Series could allow an unauthenticated, local attacker to access an affected system using static credentials. This vulnerability is due to the presence of static accounts with hard-coded passwords on an affected system. An attacker could exploit this vulnerability by logging in to the CLI of an affected device with these credentials. A successful exploit could allow the attacker to access the affected system and retrieve sensitive information, perform limited troubleshooting actions, modify some configuration options, or render the device unable to boot to the operating system, requiring a reimage of the device.

Exploitation

The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.

Sources

KEV status, EPSS score and vendor data refreshed automatically, last on 11 Oct 2026.

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