Raw vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XCVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.
Summary
CVE-2024-47092 is a high-severity Deserialization of Untrusted Data (CWE-502) vulnerability in Heinlein-Support Check Mk Python Api. Its CVSS base score is 7.7 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Junk Data (T1001.001); ranked at the 30th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SI-10 (Information Input Validation) — see the control section below for these in your framework.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
CVE-2024-47092, published on 2025-03-03, is a critical vulnerability rated at CVSS 9.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) stemming from insecure deserialization (CWE-502) and improper certificate validation. It affects the Checkmk Exchange plugin check-mk-api in versions prior to 5.8.1, a component used within Checkmk monitoring environments for API interactions.
Remote attackers require only network access to exploit this vulnerability, with low attack complexity, no privileges, authentication, or user interaction needed. Successful exploitation enables high-impact consequences across confidentiality, integrity, and availability, allowing attackers to potentially execute arbitrary code or fully compromise affected systems.
Advisories recommend updating the check-mk-api plugin to version 5.8.1 or later for mitigation. A specific fix is implemented in the GitHub commit b5a2a7529e3367d7a643e66f05da4f2a27013904 from the HeinleinSupport/check_mk_extensions repository, with further details available on the Checkmk Exchange plugin page.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-5766
Vulnerability Data
Insecure deserialization and improper certificate validation in Checkmk Exchange plugin check-mk-api prior to 5.8.1
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Developer testing and evaluation can uncover deserialization flaws before deployment.
Input validation directly stops deserialization of untrusted data by ensuring inputs are valid before processing.
Engineering principles such as safe deserialization and input sanitization structurally prevent the weakness from being introduced.
Integrity verification tools can detect malformed or tampered serialized data after the fact.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
PR.PS-02 addresses only post-deployment updates/patching and cannot prevent introduction of unsafe deserialization code, yet it can remediate some instances when the flaw exists in outdated libraries or components.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.