Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Evidence dossier
CVE-2024-20439
CVE-2024-20439
83.7–98.7Priority evidence range
gen-56ccdaf9Normalized restatement
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.
- State
- PUBLISHED
- Published
- Sep 4, 2024
- Updated
- Oct 21, 2025
- Evidence coverage
- 85%
2026-07-18 · v2026.06.15 · percentile 99.8%
Distinct CVSS assessments remain side by side; none are averaged.
Source comparison
Who said what
ciscooriginal assertion
container
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.
Jul 19, 2026Original evidence ↗
CISA KEVoriginal assertion
observed_exploitation
Cisco Smart Licensing Utility Static Credential Vulnerability
Jul 19, 2026Original evidence ↗
FIRST EPSSoriginal assertion
model_probability
Probability 0.920620000000; percentile 0.998090000000
Jul 19, 2026Original evidence ↗
Applicability
Cited product scope
ciscocisco_smart_license_utility
[{"status": "affected", "version": "2.1.0"}, {"status": "affected", "version": "2.0.0"}, {"status": "affected", "version": "2.2.0"}]unknownciscocisco_smart_license_utility
[{"status": "affected", "version": "2.1.0"}, {"status": "affected", "version": "2.0.0"}, {"status": "affected", "version": "2.2.0"}]unknownciscocisco_smart_license_utility
[{"status": "affected", "version": "2.1.0"}, {"status": "affected", "version": "2.0.0"}, {"status": "affected", "version": "2.2.0"}]unknownCiscoCisco Smart License Utility
[{"status": "affected", "version": "2.1.0"}, {"status": "affected", "version": "2.0.0"}, {"status": "affected", "version": "2.2.0"}]unknownUnknown vendorUnknown product
cpe:2.3:a:cisco:smart_license_utility:*:*:*:*:*:*:*:*; start including 2.0.0; end excluding 2.3.0supportedAssessments
CVSS by origin
nvd@nist.govCVSS 3.1 · role Primary
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hpsirt@cisco.comCVSS 3.1 · role Secondary
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HciscoCVSS 3.1 · role unknown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLimitations and unknowns
- KEV membership is authoritative for the catalog, not proof of exposure in any environment.
- EPSS is a dated model probability and not an individual-environment prediction.
- Affected or fixed status applies only to the exact cited product and version scope; unresolved scope remains unknown.
- NVD-carried upstream facts remain derivative and are not independent corroboration.
- Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
- NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
- Factor D is unknown in Public Core because no accepted canonical mapping-obligation ledger is present.
- Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.