Local privilege escalation via DWM type confusion
Published Jul 14, 2026 · Updated Jul 14, 2026
Type confusion in Microsoft Windows DWM allows local users with low privileges to elevate privileges on affected Windows systems. DWM accesses a resource using an incompatible type, but Microsoft has not disclosed the specific object, code path, or malformed input that triggers the mismatch. Exploitation requires local access and low privileges, needs no user interaction, and can compromise confidentiality, integrity, and availability at the elevated security context.
Summary
What happened
Type confusion in Microsoft Windows DWM allows local users with low privileges to elevate privileges on affected Windows systems. DWM accesses a resource using an incompatible type, but Microsoft has not disclosed the specific object, code path, or malformed input that triggers the mismatch. Exploitation requires local access and low privileges, needs no user interaction, and can compromise confidentiality, integrity, and availability at the elevated security context.
The record
- CVE
- CVE-2026-58541
- Published
- Jul 14, 2026
- Updated
- Jul 14, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-843, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 14, 2026CVE publishedPublication date reported by the CVE source.
- Jul 14, 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=10.0.17763.0 <10.0.17763.9020
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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