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CVE-2026-57092: Microsoft Windows VMSwitch Elevation of Privilege Vulnerability

criticalCVSS 9.9CVE-2026-57092
Use after free in Windows VMSwitch allows an authorized attacker to elevate privileges over a network.

CSIRTS triage

vendor: Microsoftproduct: WindowsPrivilege escalation
What
A use after free vulnerability in Windows VMSwitch allows an attacker to elevate privileges over a network.
Who is affected
Authorized users of Windows with VMSwitch are affected by this vulnerability.
Urgency
Remediation is urgent due to the critical nature of the vulnerability and its high CVSS score.
Action
Apply the security patch provided for CVE-2026-57092.

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
critical — CVSS 9.9
Published
2026-07-14
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-57092

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.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-57092coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

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

Recent advisories for Microsoft Windows VMSwitch

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.

More from Microsoft Security Response Center