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CVE-2026-69549

Virtual Hard Disk (VHD) Miniport Driver Elevation of Privilege Vulernability

HIGH
7
CVSS Score
Published: September 8, 2026 at 05:11 PM UTC
Updated: October 14, 2026 at 11:06 PM UTC
10 products affected across 1 vendorWindows Server 2019Windows 10 1809Windows Server 2022

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Severity
HIGH7
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

Out-of-bounds read in Virtual Hard Disk (VHD) Miniport Driver allows an authorized attacker to elevate privileges locally.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Windows 10 1809· Microsoft
95%
v < 10.0.17763.924510.0.17763.0 ≤ v < 10.0.17763.924510.0.17763.0
Affected range stops below 10.0.17763.9245, so it looks safe — our inference, not a vendor statement
Windows 10 21H2· Microsoft
95%
v < 10.0.19044.772510.0.19044.0 ≤ v < 10.0.19044.772510.0.19044.0
Affected range stops below 10.0.19044.7725, so it looks safe — our inference, not a vendor statement
Windows 10 22H2· Microsoft
95%
v < 10.0.19045.772510.0.19045.0 ≤ v < 10.0.19045.772510.0.19045.0
Affected range stops below 10.0.19045.7725, so it looks safe — our inference, not a vendor statement
Windows 11 23H2· Microsoft
95%
v < 10.0.22631.758210.0.22631.0 ≤ v < 10.0.22631.758210.0.22631.0
Affected range stops below 10.0.22631.7582, so it looks safe — our inference, not a vendor statement
Windows 11 24H2· Microsoft
95%
v < 10.0.26100.944510.0.26100.0 ≤ v < 10.0.26100.944510.0.26100.0
Affected range stops below 10.0.26100.9445, so it looks safe — our inference, not a vendor statement
Windows 11 25H2· Microsoft
95%
v < 10.0.26200.944510.0.26200.0 ≤ v < 10.0.26200.944510.0.26200.0
Affected range stops below 10.0.26200.9445, so it looks safe — our inference, not a vendor statement
Windows 11 26H1· Microsoft
95%
v < 10.0.28000.295410.0.28000.0 ≤ v < 10.0.28000.295410.0.28000.0
Affected range stops below 10.0.28000.2954, so it looks safe — our inference, not a vendor statement
Windows Server 2019· Microsoft
95%
v < 10.0.17763.924510.0.17763.0 ≤ v < 10.0.17763.924510.0.17763.0
Affected range stops below 10.0.17763.9245, so it looks safe — our inference, not a vendor statement
Windows Server 2022· Microsoft
95%
v < 10.0.20348.562210.0.20348.0 ≤ v < 10.0.20348.562210.0.20348.0
Affected range stops below 10.0.20348.5622, so it looks safe — our inference, not a vendor statement
Windows Server 2025· Microsoft
95%
v < 10.0.26100.3343810.0.26100.0 ≤ v < 10.0.26100.3343810.0.26100.0
Affected range stops below 10.0.26100.33438, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No 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-2026-69549

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7HIGHmicrosoft
Vector?

Quick Info

StatusANALYZED
CWE
CWE-125CWE-200

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