SARA / Free Tools / CVE / CVE-2024-20439

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

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. A

CVSS
9.8 CRITICAL
EPSS
86.31% (top 0.60%)
CWE
CWE-912
Published
2024-09-04T16:28:39.669Z
Last modified
2025-10-21T22:55:46.010Z
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA KEV — Actively Exploited
Added to KEV
2025-03-31
BOD 22-01 due
2025-04-21
Ransomware use
Unknown

01What is this vulnerability?

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…

02Affected products

VendorProductVersions
CiscoCisco Smart License Utility2.1.0, 2.0.0, 2.2.0

03Active exploitation status

Yes — actively exploited. Added to the CISA KEV catalog on 2025-03-31. Ransomware use: Unknown.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

Open in Sigma generator →

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

Want this in your SOAR or SIEM?
SARA's API returns EPSS, CVSS, KEV, and an analyst-grade summary in one call.
Read the API reference →