CVE-2026-40358

HighCVSS 8.4/10Last modified Jun 17, 2026

Description

Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.

Metrics

CVSS 3.1 8.4/10CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-416

Affected software

No affected versions have been published.

Timeline

Published
May 12, 2026
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2026-40358: High severity, CVSS 8.4 | Vulnix