CVE-2026-40369
Windows Kernel Elevation of Privilege Vulnerability
HIGH
7.8
CVSS Score
Published: May 12, 2026 at 04:59 PM UTC
Updated: June 26, 2026 at 05:16 AM UTC
4 products affected across 1 vendorWindows Server 2025Windows 11 24H2Windows 11 25H2
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Severity
HIGH7.8
Exploit prediction
EPSS 5%
SSVC
PoC
Description
Untrusted pointer dereference in Windows Kernel allows an authorized attacker to elevate privileges locally.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Affected range stops below 10.0.26100.8390, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.0.26100.8457, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.0.26200.8390, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.0.26200.8457, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.0.28000.2113, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.0.26100.32772, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.0.26100.32860, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
Vendor AdvisoryPatch
Source: cverecord
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40369SSVC — Action Prioritization
SSVCPoCNot automatableTotal impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
7.8HIGHmicrosoft
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-822
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