CVE-2023-36036: Microsoft Windows Cloud Files Mini Filter Driver Privilege Escalation Vulnerability

CVE-2023-36036 · Severity: critical · CVSS 7.8 · Exploited in the wild · Published 2023-11-14

The Microsoft Windows Cloud Files Mini Filter Driver contains an elevation of privilege vulnerability caused by a heap-based buffer overflow (out-of-bounds write). Successful exploitation allows a local attacker to gain SYSTEM privileges.

Technologies: Microsoft Windows. Vendors: Microsoft.

Quick answers

Is CVE-2023-36036 exploited in the wild?
Yes. CVE-2023-36036 is known to be exploited in the wild, first recorded on 14 November 2023. Treat it as urgent.
How severe is CVE-2023-36036?
Critical severity, with a CVSS score of 7.8, published 14 November 2023.
Which products and versions are affected?
Microsoft Windows 10 1507, 1607, 1809, 21H2, 22H2; Microsoft Windows 11 21H2, 22H2, 23H2; Microsoft Windows Server 2008 SP2.
Is there a fix for CVE-2023-36036?
A patch was published on 2023-11-14. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2023-36036 attacked?
It is attacked with local access, in an operating system.
Am I affected by CVE-2023-36036?
Check whether you run Microsoft Windows. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Microsoft Windows 10 1507, 1607, 1809, 21H2, 22H2
  • Microsoft Windows 11 21H2, 22H2, 23H2
  • Microsoft Windows Server 2008 SP2

Timeline

  • 2023-11-14: disclosed
  • 2023-11-14: patched
  • 2023-11-14: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
  • 2023-11-14: exploited: Reported as exploited in the wild at time of publication.

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