CVE-2026-34336
Windows DWM Core Library Elevation of Privilege Vulnerability
HIGH
7.8
CVSS Score
Published: May 12, 2026 at 04:59 PM UTC
Updated: August 10, 2026 at 03:39 PM UTC
14 products affected across 1 vendorWindows Server 2016Windows Server 2019Windows 10 1809
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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit
Description
Buffer over-read in Windows DWM Core Library allows an authorized attacker to disclose information locally.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Affected range stops below 10.0.14393.9140, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.0.17763.8755, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.0.19044.7291, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.0.19045.7291, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.0.19045.7417, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.0.22631.7079, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.0.22631.7219, so it looks safe — our inference, not a vendor statement
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 10.0.14393.9140, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.0.17763.8755, 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-2026-34336SSVC — Action Prioritization
SSVCNo known exploitNot 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-126CWE-122
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