CVE-2023-33157
Published: 11 July 2023
Summary
CVE-2023-33157 is a high-severity Code Injection (CWE-94) vulnerability in Microsoft Sharepoint Server. Its CVSS base score is 8.8 (High).
Operationally, ranked in the top 8.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
Microsoft SharePoint is affected by CVE-2023-33157, a remote code execution vulnerability published on July 11, 2023. The flaw, associated with CWE-94 for improper control of code generation, carries a CVSS score of 8.8, indicating high severity due to its network-accessible nature with low attack complexity and privileges required.
An authenticated attacker can exploit this vulnerability remotely to execute arbitrary code, potentially compromising the confidentiality, integrity, and availability of the affected SharePoint system.
Microsoft has published advisories addressing the vulnerability through its Security Response Center at the referenced URLs.
The EPSS score reached a peak of 0.0858 with a current value of 0.0631.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-37342
Vulnerability details
Microsoft SharePoint 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.
Makes persistent code injection into loaded programs impossible when the executable image itself resides on hardware-protected read-only media.
Dynamically generated code can be produced and executed inside the isolated chamber, preventing host compromise from code-injection payloads.
Validates inputs used in dynamic code generation to block injected directives.
Directly prevents execution of attacker-supplied code written into data memory regions.