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CVE-2026-96103

Heap buffer overflow in Desktop Window Manager (local elevation)

CVSS 3.1
7.8 high
EPSS
—
Published
·
Modified
Analyze CVE-2026-96103 with Vani AIImpact, affected versions, exploitation status, mitigations and detection

A heap-based buffer overflow in Microsoft Desktop Window Manager lets an already authorized local user elevate privileges. No user interaction is required. Successful exploitation yields high impact on confidentiality, integrity, and availability on the local system. Microsoft has not listed affected builds or a fixed version.

What to do: Apply Microsoft's update for CVE-2026-96103. No workaround is stated.

ProductAffected
Microsoft Desktop Window Manager—
Estimated exposure
No basis for an estimate.

Order-of-magnitude estimate by the model from install counts, market share and public scan data it knows; verify before quoting.

Description · NVD

Heap-based buffer overflow in Desktop Window Manager allows an authorized attacker to elevate privileges locally.

Weakness
CWE-122
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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