CVE-2026-58634

VendormicrosoftProductwindows 11 26h1DiscoveredJul 14, 2026UpdatedOct 24, 2026

Use after free in Desktop Window Manager allows an authorized attacker to elevate privileges locally.

CVSS v3.1

7.8 HIGH

EPSS

0.33%

probability of exploitation in 30 days

CISA KEV

Not listed

no confirmed exploitation reported

News coverage

sources referencing this CVE

Related IOCs

seen in the same coverage

Intelligence Reports2

2 intelligence reports available

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CVSS v3.1 Detail

Attack VectorLOCAL

Attack ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

ScopeUNCHANGED

ConfidentialityHIGH

IntegrityHIGH

AvailabilityHIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Connections

3 relationships

Timeline

disclosure → media coverage

Jul 14, 2026

advisories.ncsc.nl reports: NCSC-2026-0231 [1.00] [M/H] Kwetsbaarheden verholpen in Microsoft Windows

Jul 14, 2026

Disclosure — published as a CVE record. · last revised by NVD Oct 24, 2026