CVE-2026-62738: Windows Management Instrumentation Information Disclosure Vulnerability

Out-of-bounds read in Windows Management Instrumentation allows an authorized attacker to disclose information locally.

CSIRTS triage

What: An out-of-bounds read in Windows Management Instrumentation allows disclosure of sensitive information locally.
Who is affected: Users with local access to systems running Windows Management Instrumentation.
Urgency: Medium severity (CVSS 5.5); requires local authentication and information disclosure only.
Action: Apply the latest security patch for Windows Management Instrumentation from Microsoft Update.

AI-assisted analysis generated from the source advisory — verify against the original.

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EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-627380.39% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 32% of all EPSS-scored CVEs.

CVE	CSIRTS overview	External
CVE-2026-62738	coverage & exploitation status	NVD · CVE.org

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