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CVE-2026-111285

Heap buffer overflow in Microsoft Word via crafted document

CVSS 3.1
8.8 high
EPSS
—
Published
·
Modified
Analyze CVE-2026-111285 with Vani AIImpact, affected versions, exploitation status, mitigations and detection

A heap-based buffer overflow in Microsoft Office Word lets an attacker run code when a user opens a malicious document. The attack is remote and needs no account, but the victim must interact with the file. Successful exploitation yields high impact on confidentiality, integrity, and availability of the Word process. Microsoft has not listed affected builds.

What to do: Apply Microsoft's update for CVE-2026-111285. No workaround is named.

ProductAffected
Microsoft Office Word—
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 Microsoft Office Word allows an unauthorized attacker to execute code over a network.

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

In the news

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