CVE-2024-20440Known exploitationNetwork attack vector

Credential disclosure via remotely retrievable debug logs

Published Sep 4, 2024 · Updated Apr 1, 2025

Information disclosure in Cisco Smart Licensing Utility 2.0.0 through 2.2.0 allows remote attackers to retrieve sensitive logs via HTTP. The HTTP service returns an excessively verbose debug log in response to a crafted request, exposing stored data including API credentials. Exploitation requires the utility to have been started and remain running; disclosed credentials grant access to its API.

CVSS severity7.5
High
EPSS probability51.90%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Cisco Smart Licensing Utility 2.0.0 through 2.2.0 allows remote attackers to retrieve sensitive logs via HTTP. The HTTP service returns an excessively verbose debug log in response to a crafted request, exposing stored data including API credentials. Exploitation requires the utility to have been started and remain running; disclosed credentials grant access to its API.

The record

CVE
CVE-2024-20440
Published
Sep 4, 2024
Updated
Apr 1, 2025
Vendor
ClamAV
Product
Cisco Smart Licensing Utility
Classifications
CWE-532, T1552.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 4, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 1, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.0.0
  2. Affected versionversion=2.1.0
  3. Affected versionversion=2.2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ClamAV · Cisco Smart Licensing Utilityversion=2.0.0; version=2.1.0; version=2.2.0

Published CVSS scores

7.5CiscoCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-532Insertion of Sensitive Information into Log File
T1552.001Unsecured Credentials: Credentials In Files

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

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Your stack

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