CVE-2026-50429: Windows Kernel Information Disclosure Vulnerability

highCVSS 8.2CVE-2026-50429

Out-of-bounds read in Windows Kernel allows an unauthorized attacker to disclose information over a network.

CSIRTS triage

vendor: Microsoft product: Windows Kernel Information disclosure

What: Out-of-bounds read in Windows Kernel allows an unauthorized attacker to disclose information over a network.
Who is affected: Deployments of Windows Kernel.
Urgency: Remediation is important due to the high severity and potential for information disclosure.
Action: Install the latest security updates for Windows Kernel.

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: high — CVSS 8.2
Published: 2026-07-14
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50429

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-2026-504290.77% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 52% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-50429	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 Windows Kernel Information

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-2026-50475: Buffer over-read in Windows Kernel allows an authorized attacker to disclose information local…nvd · 2026-07-14
highCVE-2026-50463: Out-of-bounds read in Windows Kernel allows an unauthorized attacker to disclose information o…nvd · 2026-07-14
highCVE-2026-50429: Out-of-bounds read in Windows Kernel allows an unauthorized attacker to disclose information o…nvd · 2026-07-14
lowCVE-2026-50419: Exposure of sensitive information to an unauthorized actor in Windows Kernel allows an authori…nvd · 2026-07-14
mediumCVE-2026-50316: Insertion of sensitive information into log file in Windows Kernel allows an authorized attack…nvd · 2026-07-14
mediumCVE-2026-50300: Integer underflow (wrap or wraparound) in Windows Kernel allows an authorized attacker to disc…nvd · 2026-07-14