CVE-2024-20439

criticalpriority · act · 90OT risk · criticalKEV · exploitedEPSS 0.971 · 100 %ileEURUUS
grimoire priorityP0 · Act now
Exploitable?
Yes · in the wild
CISA KEV
Likely / severe?
97.1% (100th) EPSS
CVSS 9.8 · critical
Is it mine?
8 products
Check your exposure
Who says so?
5 sources
cnnvd · enisa_euvd · fstec_bdu · cisco_csaf

added 2025-03-31remediate by 2025-04-21

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.

EPSS · scored 2026-10-24

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. 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.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

02

cvss

Technical severity, 0–10. One row per scoring source.

9.8
010

base score 0–10 · higher = more severe · hover a vector to decode

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9
v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU
v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU
v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · psirt@cisco.com USexploitability 3.9 · impact 5.9
v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Hsecondary · CVSS-BT (t0sche)
v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · Cisco PSIRT US
03

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: active · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-798USprimaryCWE-912USCWE-912US
05

ATT&CK techniques

ATT&CK techniques this enables or maps to.

06

affected products (8)

Products and version ranges known to be affected.

07

advisories (1)

Vendor and ecosystem advisories describing this.

  • cisco-sa-cslu-7gHMzWmwCisco Smart Licensing Utility Vulnerabilities2024-09-04csaf · cisco_csafUS

    Multiple vulnerabilities in Cisco Smart Licensing Utility could allow an unauthenticated, remote attacker to collect sensitive information or administer Cisco Smart Licensing Utility services on a system while the software is running. Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities. For more information about these vulnerabilities, see the Details ["#details"] section of this advisory.

08

also known as (4)

Other names and identifiers for this entity.

09

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducisco_csafnvdNVDCVE.orgMITRE
published 2024-09-04modified 2026-06-17
11

references (6)

External citations — patches, advisories, analysis.

scry

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