Vulnerability in Cisco Smart License Utility
CVE-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. 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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.971 (99.9th percentile), scored .
Very high probability of exploitation in the next 30 days — among the top 0.1% most-likely-to-be-exploited CVEs. 100th percentile — 99.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.921 · newest: 0.971 · change: +0.050
Affected products
- Cisco Smart License Utility — versions 2.1.0, 2.0.0, 2.2.0
- Cisco Smart License Utility
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
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.
Public proof-of-concept exploits
References
- sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-… (Vendor Advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2024-20439?
- CVE-2024-20439 is a critical-severity vulnerability in Cisco Smart License Utility, classified under Hidden Functionality. CVSS score: 9.8/10. Published 2024-09-04.
- How severe is CVE-2024-20439?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2024-20439 known to be exploited?
- Yes. CVE-2024-20439 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-03-31), indicating it is being actively exploited. 10 public proof-of-concept repositories are indexed.