cve-2026-40369

About this tag
CVE-2026-40369 is a Windows kernel-mode driver vulnerability disclosed by Microsoft during the May 2026 Patch Tuesday release. It carries a CVSS base score of 7.8 and is rated Important. The flaw is classified as an elevation of privilege (EoP) risk, meaning it requires an attacker to already have local access to a system. While not a remote-code-execution emergency, it is a kernel-adjacent bug that administrators should prioritize for patching, especially in environments where attackers may already have a foothold. Discussions on WindowsForum highlight the need to treat such vulnerabilities seriously despite their lower public profile compared to internet-facing flaws.

  1. CVE-2026-40369 May Patch Tuesday: Windows Kernel Driver EoP Risk (CVSS 7.8)

    Microsoft published CVE-2026-40369 on May 12, 2026 as part of its May Patch Tuesday release, identifying it as a Windows kernel-mode driver vulnerability rated Important with a CVSS base score of 7.8. The flaw is not, on the public evidence available today, a panic-grade Windows emergency. But...
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    • cve-2026-40369 kernel privilege escalation patch tuesday windows security
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