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CVE-2024-20388

MEDIUM
5.3
CVSS Score
Published: October 23, 2024 at 05:35 PM UTC
Updated: August 11, 2026 at 07:33 PM UTC
4 products affected across 1 vendorSecure Firewall Threat DefenseSecure Firewall Management CenterFirepower Management Center

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Firepower Management Center· Cisco
95%
6.2.3 ≤ v ≤ 6.2.3.186.4.0 ≤ v ≤ 6.4.0.186.6.0 ≤ v ≤ 6.6.7.26.7.0 ≤ v ≤ 6.7.0.37.0.0 ≤ v ≤ 7.0.6.27.1.0 ≤ v ≤ 7.1.0.37.2.0 ≤ v ≤ 7.2.8.17.3.0 ≤ v ≤ 7.3.1.27.4.0 ≤ v ≤ 7.4.1.16.2.36.2.3.16.2.3.106.2.3.116.2.3.126.2.3.136.2.3.146.2.3.156.2.3.166.2.3.176.2.3.186.2.3.26.2.3.36.2.3.46.2.3.56.2.3.66.2.3.76.2.3.86.2.3.96.4.06.4.0.16.4.0.106.4.0.116.4.0.126.4.0.136.4.0.146.4.0.156.4.0.166.4.0.176.4.0.186.4.0.26.4.0.36.4.0.46.4.0.56.4.0.66.4.0.76.4.0.86.4.0.96.6.06.6.0.16.6.16.6.36.6.46.6.56.6.5.16.6.5.26.6.76.6.7.16.6.7.26.7.06.7.0.16.7.0.26.7.0.37.0.07.0.0.17.0.17.0.1.17.0.27.0.2.17.0.37.0.47.0.57.0.67.0.6.17.0.6.27.1.07.1.0.17.1.0.27.1.0.37.2.07.2.0.17.2.17.2.27.2.37.2.3.17.2.47.2.4.17.2.57.2.5.17.2.5.27.2.67.2.77.2.87.2.8.17.3.07.3.17.3.1.17.3.1.27.4.07.4.17.4.1.1
Secure Firewall Management Center· Cisco
95%
6.2.36.2.3.16.2.3.106.2.3.116.2.3.126.2.3.136.2.3.146.2.3.156.2.3.166.2.3.176.2.3.186.2.3.26.2.3.36.2.3.46.2.3.56.2.3.66.2.3.76.2.3.86.2.3.96.4.06.4.0.16.4.0.106.4.0.116.4.0.126.4.0.136.4.0.146.4.0.156.4.0.166.4.0.26.4.0.36.4.0.46.4.0.56.4.0.66.4.0.76.4.0.86.4.0.96.6.06.6.0.16.6.16.6.36.6.46.6.56.6.5.16.6.5.26.6.76.6.7.16.7.06.7.0.16.7.0.26.7.0.37.0.07.0.0.17.0.17.0.1.17.0.27.0.2.17.0.37.0.47.0.57.0.67.1.07.1.0.17.1.0.27.1.0.37.2.07.2.0.17.2.17.2.27.2.37.2.3.17.2.47.2.4.17.2.57.3.07.3.17.3.1.17.3.1.2
Secure Firewall Threat Defense· Cisco
95%
6.4.0.106.4.0.126.4.0.146.4.0.166.4.0.186.4.0.46.6.5.16.6.76.7.0.27.1.0.17.1.0.37.2.27.4.1
Firepower Threat Defense· Cisco
60%
6.4.0.4 ≤ v ≤ 6.4.0.186.6.5.1 ≤ v ≤ 6.6.77.1.0.1 ≤ v ≤ 7.1.0.36.4.0.46.6.5.17.1.0.1

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: [email protected]
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-xss-infodisc-RL4mJFer

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMcisco
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-202NVD-CWE-Other

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