Local memory disclosure via out-of-bounds read
Published Jun 9, 2026 · Updated Jun 9, 2026
Out-of-bounds read in Windows DWM Core Library in Windows 11 version 26H1 allows local users to disclose information from memory. Microsoft identifies the DWM Core Library as the locus but has not disclosed the affected routine, input path, or exact bounds-checking failure. Low-privileged local access is required; exploitation needs no user interaction and exposes memory without reported modification or service interruption.
Summary
What happened
Out-of-bounds read in Windows DWM Core Library in Windows 11 version 26H1 allows local users to disclose information from memory. Microsoft identifies the DWM Core Library as the locus but has not disclosed the affected routine, input path, or exact bounds-checking failure. Low-privileged local access is required; exploitation needs no user interaction and exposes memory without reported modification or service interruption.
The record
- CVE
- CVE-2026-44814
- Published
- Jun 9, 2026
- Updated
- Jun 9, 2026
- Vendor
- Microsoft
- Product
- Windows 11, version 26H1
- Classifications
- CWE-125, CWE-122, T1005
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 9, 2026CVE publishedPublication date reported by the CVE source.
- Jun 9, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=10.0.28000.0 <10.0.28000.2269
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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