# CVE-2024-20388

## Summary

- **CVE ID:** CVE-2024-20388
- **Severity:** MEDIUM
- **CVSS Score:** 5.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
- **CWE:** CWE-202
- **Published:** Oct 23, 2024
- **Last Modified:** Mar 13, 2026

## 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 Products

- Cisco — Cisco Firepower Management Center (6.2.3)
- Cisco — Cisco Firepower Management Center (6.2.3.1)
- Cisco — Cisco Firepower Management Center (6.2.3.2)
- Cisco — Cisco Firepower Management Center (6.2.3.3)
- Cisco — Cisco Firepower Management Center (6.2.3.4)
- Cisco — Cisco Firepower Management Center (6.2.3.5)
- Cisco — Cisco Firepower Management Center (6.2.3.6)
- Cisco — Cisco Firepower Management Center (6.2.3.7)
- Cisco — Cisco Firepower Management Center (6.2.3.9)
- Cisco — Cisco Firepower Management Center (6.2.3.10)
- Cisco — Cisco Firepower Management Center (6.2.3.11)
- Cisco — Cisco Firepower Management Center (6.2.3.12)
- Cisco — Cisco Firepower Management Center (6.2.3.13)
- Cisco — Cisco Firepower Management Center (6.2.3.14)
- Cisco — Cisco Firepower Management Center (6.2.3.15)
- Cisco — Cisco Firepower Management Center (6.2.3.8)
- Cisco — Cisco Firepower Management Center (6.2.3.16)
- Cisco — Cisco Firepower Management Center (6.2.3.17)
- Cisco — Cisco Firepower Management Center (6.2.3.18)
- Cisco — Cisco Firepower Management Center (6.4.0)
- Cisco — Cisco Firepower Management Center (6.4.0.1)
- Cisco — Cisco Firepower Management Center (6.4.0.3)
- Cisco — Cisco Firepower Management Center (6.4.0.2)
- Cisco — Cisco Firepower Management Center (6.4.0.4)
- Cisco — Cisco Firepower Management Center (6.4.0.5)
- Cisco — Cisco Firepower Management Center (6.4.0.6)
- Cisco — Cisco Firepower Management Center (6.4.0.7)
- Cisco — Cisco Firepower Management Center (6.4.0.8)
- Cisco — Cisco Firepower Management Center (6.4.0.9)
- Cisco — Cisco Firepower Management Center (6.4.0.10)
- Cisco — Cisco Firepower Management Center (6.4.0.11)
- Cisco — Cisco Firepower Management Center (6.4.0.12)
- Cisco — Cisco Firepower Management Center (6.4.0.13)
- Cisco — Cisco Firepower Management Center (6.4.0.14)
- Cisco — Cisco Firepower Management Center (6.4.0.15)
- Cisco — Cisco Firepower Management Center (6.4.0.16)
- Cisco — Cisco Firepower Management Center (6.4.0.17)
- Cisco — Cisco Firepower Management Center (6.4.0.18)
- Cisco — Cisco Firepower Management Center (6.6.0)
- Cisco — Cisco Firepower Management Center (6.6.0.1)
- Cisco — Cisco Firepower Management Center (6.6.1)
- Cisco — Cisco Firepower Management Center (6.6.3)
- Cisco — Cisco Firepower Management Center (6.6.4)
- Cisco — Cisco Firepower Management Center (6.6.5)
- Cisco — Cisco Firepower Management Center (6.6.5.1)
- Cisco — Cisco Firepower Management Center (6.6.5.2)
- Cisco — Cisco Firepower Management Center (6.6.7)
- Cisco — Cisco Firepower Management Center (6.6.7.1)
- Cisco — Cisco Firepower Management Center (6.6.7.2)
- Cisco — Cisco Firepower Management Center (6.7.0)
- Cisco — Cisco Firepower Management Center (6.7.0.1)
- Cisco — Cisco Firepower Management Center (6.7.0.2)
- Cisco — Cisco Firepower Management Center (6.7.0.3)
- Cisco — Cisco Firepower Management Center (7.0.0)
- Cisco — Cisco Firepower Management Center (7.0.0.1)
- Cisco — Cisco Firepower Management Center (7.0.1)
- Cisco — Cisco Firepower Management Center (7.0.1.1)
- Cisco — Cisco Firepower Management Center (7.0.2)
- Cisco — Cisco Firepower Management Center (7.0.2.1)
- Cisco — Cisco Firepower Management Center (7.0.3)
- Cisco — Cisco Firepower Management Center (7.0.4)
- Cisco — Cisco Firepower Management Center (7.0.5)
- Cisco — Cisco Firepower Management Center (7.0.6)
- Cisco — Cisco Firepower Management Center (7.0.6.1)
- Cisco — Cisco Firepower Management Center (7.0.6.2)
- Cisco — Cisco Firepower Management Center (7.1.0)
- Cisco — Cisco Firepower Management Center (7.1.0.1)
- Cisco — Cisco Firepower Management Center (7.1.0.2)
- Cisco — Cisco Firepower Management Center (7.1.0.3)
- Cisco — Cisco Firepower Management Center (7.2.0)
- Cisco — Cisco Firepower Management Center (7.2.1)
- Cisco — Cisco Firepower Management Center (7.2.2)
- Cisco — Cisco Firepower Management Center (7.2.0.1)
- Cisco — Cisco Firepower Management Center (7.2.3)
- Cisco — Cisco Firepower Management Center (7.2.3.1)
- Cisco — Cisco Firepower Management Center (7.2.4)
- Cisco — Cisco Firepower Management Center (7.2.4.1)
- Cisco — Cisco Firepower Management Center (7.2.5)
- Cisco — Cisco Firepower Management Center (7.2.5.1)
- Cisco — Cisco Firepower Management Center (7.2.6)
- Cisco — Cisco Firepower Management Center (7.2.7)
- Cisco — Cisco Firepower Management Center (7.2.5.2)
- Cisco — Cisco Firepower Management Center (7.2.8)
- Cisco — Cisco Firepower Management Center (7.2.8.1)
- Cisco — Cisco Firepower Management Center (7.3.0)
- Cisco — Cisco Firepower Management Center (7.3.1)
- Cisco — Cisco Firepower Management Center (7.3.1.1)
- Cisco — Cisco Firepower Management Center (7.3.1.2)
- Cisco — Cisco Firepower Management Center (7.4.0)
- Cisco — Cisco Firepower Management Center (7.4.1)
- Cisco — Cisco Firepower Management Center (7.4.1.1)
- Cisco — Cisco Firepower Threat Defense Software (6.6.5.1)
- Cisco — Cisco Firepower Threat Defense Software (6.6.7)
- Cisco — Cisco Firepower Threat Defense Software (6.4.0.4)
- Cisco — Cisco Firepower Threat Defense Software (6.4.0.10)
- Cisco — Cisco Firepower Threat Defense Software (6.4.0.12)
- Cisco — Cisco Firepower Threat Defense Software (6.4.0.14)
- Cisco — Cisco Firepower Threat Defense Software (6.4.0.16)
- Cisco — Cisco Firepower Threat Defense Software (6.4.0.18)
- Cisco — Cisco Firepower Threat Defense Software (6.7.0.2)
- Cisco — Cisco Firepower Threat Defense Software (7.1.0.1)
- Cisco — Cisco Firepower Threat Defense Software (7.1.0.3)
- Cisco — Cisco Firepower Threat Defense Software (7.2.2)
- Cisco — Cisco Firepower Threat Defense Software (7.4.1)

## References

- [CNA](https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-xss-infodisc-RL4mJFer)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.41%
- **EPSS Percentile:** 34.8

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._