What’s Vulnerable › Vulnerabilities

CVE-2024-20439: Cisco Smart Licensing Utility Static Credential Vulnerability

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2025-03-31
• EPSS: 97.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2024-09-04 · updated 2026-06-17
• Weakness: CWE-912

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 Smart License Utility: from 2.0.0 before 2.3.0 — fixed in 2.3.0

How to fix

Upgrade to a fixed version: Cisco Smart License Utility 2.3.0. Check the vendor advisory for mitigations.

References

• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cslu-7gHMzWmw
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-20439

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