# CVE-2024-20439

## Summary

- **CVE ID:** CVE-2024-20439
- **Severity:** CRITICAL
- **CVSS Score:** 9.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
- **CWE:** CWE-912
- **Published:** Sep 4, 2024
- **Last Modified:** Oct 21, 2025

## Description

A vulnerability in Cisco Smart Licensing Utility (CSLU) could allow an unauthenticated, remote attacker to log into an affected system by using a static administrative credential.

 This vulnerability is due to an undocumented static user credential for an administrative account. An attacker could exploit this vulnerability by using the static credentials to login to the affected system. A successful exploit could allow the attacker to login to the affected system with administrative rights over the CSLU application API.

## Affected Products

- Cisco — Cisco Smart License Utility (2.1.0)
- Cisco — Cisco Smart License Utility (2.0.0)
- Cisco — Cisco Smart License Utility (2.2.0)

## References

- [CNA](https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cslu-7gHMzWmw)
- [CISA-ADP](https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-20439)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 92.06%
- **EPSS Percentile:** 99.8

## Known Exploited Vulnerabilities (KEV)

- **Date Added:** Mar 31, 2025
- **Due Date:** Apr 21, 2025

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._