Actively exploited in the wild
Cisco Smart Licensing Utility Static Credential Vulnerability
Cisco - Smart Licensing Utility · Listed in the CISA KEV since 2025-03-31. This indicates confirmed attacks in production environments.
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CVE-2024-20439
CriticalCVSS 9.8KEVSummary
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.
Risk Assessment
An attacker could gain administrative rights over the CSLU application API, enabling unauthorized access to resources and configuration changes.
Recommendation
Update Cisco Smart Licensing Utility to a patched version and restrict network access to the CSLU API interface.
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Original NVD description (English source)
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.