CVE-2021-36955
Microsoft Windows Server 2008 r2
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSummary
CVE-2021-36955 is a high-severity an unspecified weakness vulnerability in Microsoft Windows Server 2008. Its CVSS base score is 7.8 (High).
Operationally, ranked in the top 10% of CVEs by exploit likelihood; CISA has added it to the Known Exploited Vulnerabilities catalog.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
The vulnerability CVE-2021-36955 is an elevation of privilege flaw in the Windows Common Log File System Driver. It carries a CVSS 3.1 base score of 7.8 and affects local users on supported Windows systems.
An attacker with low privileges and no user interaction required can exploit the issue locally to obtain full control over confidentiality, integrity, and availability on the affected host.
Microsoft has published remediation guidance through its Security Response Center advisory, while CISA lists the vulnerability in its catalog of known exploited vulnerabilities, confirming active exploitation in the wild and underscoring the need for prompt patching.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-23531
Vulnerability Data
Windows Common Log File System Driver Elevation of Privilege Vulnerability
- CWE(s)
- KEV Date Added
- 03 November 2021
Related Threats
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Affected Assets
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.