CVE-2024-38864

Local private-key disclosure via permissive directory ACLs

Published Dec 19, 2024 · Updated Dec 20, 2024

Incorrect permissions in the Checkmk Windows Agent allow local users to read sensitive data in affected 2.1.0, 2.2.0, and 2.3.0 releases. Windows ACLs grant the built-in Users group read access to C:\ProgramData\checkmk\agent and its contents, including the private key used for TLS authentication. Any unprivileged local Windows account can read those credentials; the advisory reports disclosure, not modification or service interruption.

CVSS severity4.8
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect permissions in the Checkmk Windows Agent allow local users to read sensitive data in affected 2.1.0, 2.2.0, and 2.3.0 releases. Windows ACLs grant the built-in Users group read access to C:\ProgramData\checkmk\agent and its contents, including the private key used for TLS authentication. Any unprivileged local Windows account can read those credentials; the advisory reports disclosure, not modification or service interruption.

The record

CVE
CVE-2024-38864
Published
Dec 19, 2024
Updated
Dec 20, 2024
Vendor
Checkmk GmbH
Product
Checkmk
Classifications
CWE-732, CAPEC-560, T1552.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 19, 2024CVE publishedPublication date reported by the CVE source.
  2. Dec 20, 2024Record 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=2.1.0 <2.1.0p50
  2. Affected versionversion=2.2.0 <2.2.0p38
  3. Affected versionversion=2.3.0 <2.3.0p23

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Checkmk GmbH · Checkmkversion=2.1.0 <2.1.0p50; version=2.2.0 <2.2.0p38; version=2.3.0 <2.3.0p23

Published CVSS scores

3.3NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
4.8Checkmk GmbHCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:L/SA: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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-732Incorrect Permission Assignment for Critical Resource
CAPEC-560Use of Known Domain Credentials
T1552.004Unsecured Credentials: Private Keys

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.

Technologies

Your stack

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Your stack

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