CVE-2026-50416: Win32k Information Disclosure Vulnerability

lowpublic exploitCVSS 3.3CVE-2026-50416

Exposure of sensitive information to an unauthorized actor in Windows Win32K allows an authorized attacker to disclose information locally.

CSIRTS triage

vendor: Microsoft product: Windows Win32K Information disclosure

What: Exposure of sensitive information to an unauthorized actor in Windows Win32K allows an authorized attacker to disclose information locally.
Who is affected: Deployments of Windows Win32K.
Urgency: Remediation is less urgent due to the low severity, but still necessary to protect sensitive information.
Action: Apply the latest security patch as soon as it is available.

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

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Details

Source: Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity: low — CVSS 3.3
Published: 2026-07-14
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50416

Exploitation outlook

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-2026-504160.47% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 39% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-50416	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for Win32k Information Disclosure

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

mediumCVE-2026-56184: Win32k Information Disclosure Vulnerabilitymsrc · 2026-07-14