How severe is CVE-2024-20440?

CVE-2024-20440 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2024-20440 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 51% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-20440?

CVE-2024-20440 primarily affects Cisco Smart License Utility. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-20440?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2024-20440 have an EU (EUVD) identifier?

Yes. CVE-2024-20440 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-18155.

When was CVE-2024-20440 published?

CVE-2024-20440 was published on 2024-09-04 and last updated on 2026-06-17.

CVE-2024-20440

CVE-2024-20440 is a high-severity vulnerability in Cisco Smart License Utility with a CVSS 3.x base score of 7.5. Its EPSS exploit-prediction score of 51% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-532.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 51% (99th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-18155
Weakness: CWE-532
Affected product: Cisco Smart License Utility
Published: 2024-09-04
Last modified: 2026-06-17

Description

A vulnerability in Cisco Smart Licensing Utility could allow an unauthenticated, remote attacker to access sensitive information. This vulnerability is due to excessive verbosity in a debug log file. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to obtain log files that contain sensitive data, including credentials that can be used to access the API.

Frequently asked questions

What is CVE-2024-20440?: A vulnerability in Cisco Smart Licensing Utility could allow an unauthenticated, remote attacker to access sensitive information. This vulnerability is due to excessive verbosity in a debug log file. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to obtain log files that contain sensitive data, including credentials that can be used to access the API.
How severe is CVE-2024-20440?: CVE-2024-20440 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2024-20440 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 51% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-20440?: CVE-2024-20440 primarily affects Cisco Smart License Utility. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-20440?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2024-20440 have an EU (EUVD) identifier?: Yes. CVE-2024-20440 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-18155.
When was CVE-2024-20440 published?: CVE-2024-20440 was published on 2024-09-04 and last updated on 2026-06-17.

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cslu-7gHMzWmw

Affected products (3)

cpe:2.3:a:cisco:smart_license_utility:2.0.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:smart_license_utility:2.1.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:smart_license_utility:2.2.0:*:*:*:*:*:*:*

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