Secure Firewall ASA and FTD
CVE-2024-20388: A vulnerability in the password change feature of Cisco Firepower Management Center (FMC) software could al…
A vulnerability in the password change feature of Cisco Firepower Management Center (FMC) software could allow an unauthenticated, remote attacker to determine valid user names on an affected device.
Published
ExploitedNot in CISA KEV
Ransomware useNot reportedPer CISA
SeverityMEDIUMCVSS 3.1 5.3
EPSS0.42%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 / branch | Fixed in |
|---|---|
| Cisco Firepower Management Center 6.2 | See the advisory |
| Cisco Firepower Management Center 6.2 | See the advisory |
| Cisco Firepower Management Center 6.2 | See the advisory |
| Cisco Firepower Management Center 6.2 | See the advisory |
| Cisco Firepower Management Center 6.2 | See the advisory |
| Cisco Firepower Management Center 6.2 | See the advisory |
| Cisco Firepower Management Center 6.2 | See the advisory |
| Cisco Firepower Management Center 6.2 | See the advisory |
| Cisco Firepower Management Center 6.2 | See the advisory |
| Cisco Firepower Management Center 6.2 | See the advisory |
| Cisco Firepower Management Center 6.2 | See the advisory |
| Cisco Firepower Management Center 6.2 | See the advisory |
| Cisco Firepower Management Center 6.2 | See the advisory |
| Cisco Firepower Management Center 6.2 | See the advisory |
| Cisco Firepower Management Center 6.2 | See the advisory |
| Cisco Firepower Management Center 6.2 | See the advisory |
| Cisco Firepower Management Center 6.2 | See the advisory |
| Cisco Firepower Management Center 6.2 | See the advisory |
| Cisco Firepower Management Center 6.2 | See the advisory |
| Cisco Firepower Management Center 6.4 | See the advisory |
| Cisco Firepower Management Center 6.4 | See the advisory |
| Cisco Firepower Management Center 6.4 | See the advisory |
| Cisco Firepower Management Center 6.4 | See the advisory |
| Cisco Firepower Management Center 6.4 | See the advisory |
| Cisco Firepower Management Center 6.4 | See the advisory |
| Cisco Firepower Management Center 6.4 | See the advisory |
| Cisco Firepower Management Center 6.4 | See the advisory |
| Cisco Firepower Management Center 6.4 | See the advisory |
| Cisco Firepower Management Center 6.4 | See the advisory |
| Cisco Firepower Management Center 6.4 | See the advisory |
| Cisco Firepower Management Center 6.4 | See the advisory |
| Cisco Firepower Management Center 6.4 | See the advisory |
| Cisco Firepower Management Center 6.4 | See the advisory |
| Cisco Firepower Management Center 6.4 | See the advisory |
| Cisco Firepower Management Center 6.4 | See the advisory |
| Cisco Firepower Management Center 6.4 | See the advisory |
| Cisco Firepower Management Center 6.4 | See the advisory |
| Cisco Firepower Management Center 6.4 | See the advisory |
| Cisco Firepower Management Center 6.6 | See the advisory |
| Cisco Firepower Management Center 6.6 | See the advisory |
| Cisco Firepower Management Center 6.6 | See the advisory |
| Cisco Firepower Management Center 6.6 | See the advisory |
| Cisco Firepower Management Center 6.6 | See the advisory |
| Cisco Firepower Management Center 6.6 | See the advisory |
| Cisco Firepower Management Center 6.6 | See the advisory |
| Cisco Firepower Management Center 6.6 | See the advisory |
| Cisco Firepower Management Center 6.6 | See the advisory |
| Cisco Firepower Management Center 6.6 | See the advisory |
| Cisco Firepower Management Center 6.6 | See the advisory |
| Cisco Firepower Management Center 6.7 | See the advisory |
| Cisco Firepower Management Center 6.7 | See the advisory |
| Cisco Firepower Management Center 6.7 | See the advisory |
| Cisco Firepower Management Center 6.7 | See the advisory |
| Cisco Firepower Management Center 7.0 | See the advisory |
| Cisco Firepower Management Center 7.0 | See the advisory |
| Cisco Firepower Management Center 7.0 | See the advisory |
| Cisco Firepower Management Center 7.0 | See the advisory |
| Cisco Firepower Management Center 7.0 | See the advisory |
| Cisco Firepower Management Center 7.0 | See the advisory |
| Cisco Firepower Management Center 7.0 | See the advisory |
| Cisco Firepower Management Center 7.0 | See the advisory |
| Cisco Firepower Management Center 7.0 | See the advisory |
| Cisco Firepower Management Center 7.0 | See the advisory |
| Cisco Firepower Management Center 7.0 | See the advisory |
| Cisco Firepower Management Center 7.0 | See the advisory |
| Cisco Firepower Management Center 7.1 | See the advisory |
| Cisco Firepower Management Center 7.1 | See the advisory |
| Cisco Firepower Management Center 7.1 | See the advisory |
| Cisco Firepower Management Center 7.1 | See the advisory |
| Cisco Firepower Management Center 7.2 | See the advisory |
| Cisco Firepower Management Center 7.2 | See the advisory |
| Cisco Firepower Management Center 7.2 | See the advisory |
| Cisco Firepower Management Center 7.2 | See the advisory |
| Cisco Firepower Management Center 7.2 | See the advisory |
| Cisco Firepower Management Center 7.2 | See the advisory |
| Cisco Firepower Management Center 7.2 | See the advisory |
| Cisco Firepower Management Center 7.2 | See the advisory |
| Cisco Firepower Management Center 7.2 | See the advisory |
| Cisco Firepower Management Center 7.2 | See the advisory |
| Cisco Firepower Management Center 7.2 | See the advisory |
| Cisco Firepower Management Center 7.2 | See the advisory |
| Cisco Firepower Management Center 7.2 | See the advisory |
| Cisco Firepower Management Center 7.2 | See the advisory |
| Cisco Firepower Management Center 7.2 | See the advisory |
| Cisco Firepower Management Center 7.3 | See the advisory |
| Cisco Firepower Management Center 7.3 | See the advisory |
| Cisco Firepower Management Center 7.3 | See the advisory |
| Cisco Firepower Management Center 7.3 | See the advisory |
| Cisco Firepower Management Center 7.4 | See the advisory |
| Cisco Firepower Management Center 7.4 | See the advisory |
| Cisco Firepower Management Center 7.4 | See the advisory |
| Cisco Firepower Threat Defense Software 6.6 | See the advisory |
| Cisco Firepower Threat Defense Software 6.6 | See the advisory |
| Cisco Firepower Threat Defense Software 6.4 | See the advisory |
| Cisco Firepower Threat Defense Software 6.4 | See the advisory |
| Cisco Firepower Threat Defense Software 6.4 | See the advisory |
| Cisco Firepower Threat Defense Software 6.4 | See the advisory |
| Cisco Firepower Threat Defense Software 6.4 | See the advisory |
| Cisco Firepower Threat Defense Software 6.4 | See the advisory |
| Cisco Firepower Threat Defense Software 6.7 | See the advisory |
| Cisco Firepower Threat Defense Software 7.1 | See the advisory |
| Cisco Firepower Threat Defense Software 7.1 | See the advisory |
| Cisco Firepower Threat Defense Software 7.2 | See the advisory |
| Cisco Firepower Threat Defense Software 7.4 | See the advisory |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
A vulnerability in the password change feature of Cisco Firepower Management Center (FMC) software could allow an unauthenticated, remote attacker to determine valid user names on an affected device. This vulnerability is due to improper authentication of password update responses. An attacker could exploit this vulnerability by forcing a password reset on an affected device. A successful exploit could allow the attacker to determine valid user names in the unauthenticated response to a forced password reset.
Exploitation
The Cisco PSIRT is aware that proof-of-concept exploit code is available for the vulnerabilities that are described in this advisory.
The Cisco PSIRT is not aware of any malicious use of the vulnerabilities that are described in this advisory.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 11 Oct 2026.