Cisco Smart Licensing Utility Static Credential Vulnerability

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• cpe cisco/smart license utilityversion unspecified
• vendor Cisco Smart Licensing Utilityversion unspecified

How to fix CVE-2024-20439

• Recommended remediation

  Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. CISA due date Apr 21, 2025.

• Official advisories

  • CISA KEV · cisa.gov
  • CVE.org · cve.org
  • FIRST EPSS · first.org
  • NIST NVD · nvd.nist.gov
  • VulnCheck KEV · vulncheck.com

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Technology hubs

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

1. Sep 4, 2024 · Catalog

   Detected

   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 successfu

2. Mar 31, 2025 · CISA KEV

   Known exploited

   Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

3. Apr 21, 2025 · CISA KEV

   Remediation due

   Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

4. Jun 17, 2026 · Catalog

   Updated

   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 successfu

Sources

• CISA KEVConfirmed exploitationCVE-2024-20439

  Cisco Smart Licensing Utility contains a static credential vulnerability that allows an unauthenticated, remote attacker to log in to an affected system and gain administrative credentials.

  cisa.gov
• CVE.orgVulnerability recordCVE-2024-20439

  Official CVE identifier

  cve.org
• FIRST EPSSExploitation probabilityCVE-2024-20439

  30-day exploitation probability 97.1%

  first.org
• NIST NVDVulnerability recordCVE-2024-20439

  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

  nvd.nist.gov
• VulnCheck KEVConfirmed exploitationCVE-2024-20439

  Cisco Smart Licensing Utility contains a static credential vulnerability that allows an unauthenticated, remote attacker to log in to an affected system and gain administrative credentials.

  vulncheck.com

References

• VulnCheck exploitation evidence · app.crowdsec.net
• VulnCheck exploitation evidence · arcticwolf.com
• VulnCheck exploitation evidence · info.greynoise.io
• VulnCheck exploitation evidence · isc.sans.edu
• CISA note · nvd.nist.gov
• CISA note · sec.cloudapps.cisco.com
• US Government Resource · cisa.gov
• VulnCheck exploitation evidence · cisa.gov

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.