CVE-2024-38023
Published: 09 July 2024
Summary
CVE-2024-38023 is a high-severity Deserialization of Untrusted Data (CWE-502) vulnerability in Microsoft Sharepoint Server. Its CVSS base score is 7.2 (High).
Operationally, ranked in the top 7.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
Microsoft SharePoint Server is affected by CVE-2024-38023, a remote code execution vulnerability stemming from deserialization of untrusted data as indicated by its CWE-502 classification. The flaw carries a CVSS 7.2 base score reflecting network attack vector, low attack complexity, and high impact across confidentiality, integrity, and availability when exploited.
An authenticated attacker with high privileges can exploit the issue over the network without user interaction to achieve arbitrary code execution on the SharePoint server. This allows full compromise of the affected system and its hosted content.
Microsoft has published guidance for the vulnerability through its Security Response Center at the referenced advisory URL, which includes details on available patches and remediation steps for supported SharePoint Server versions.
The associated EPSS score rose from a low baseline to a peak of 0.1834 on 2025-12-18 before receding to the current value of 0.0947, indicating a period of increased exploitation interest following disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2024-37728
Vulnerability details
Microsoft SharePoint Server Remote Code Execution Vulnerability
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Penetration testing supplies malicious serialized objects, detecting unsafe deserialization and supporting corrective actions.
Evaluation of untrusted data handling (deserialization testing) reveals unsafe processing, which the required remediation process addresses.
Untrusted serialized data can be deserialized and observed inside the chamber, blocking gadget-chain exploitation outside the sandbox.
Validates or rejects untrusted serialized data before deserialization occurs.
Identifies and blocks malicious code introduced through deserialization of untrusted data at system boundaries.
Integrity verification of serialized information can detect tampering before deserialization occurs.
Provenance of associated data allows detection of untrusted sources before deserialization or processing occurs.