CVE-2026-77898

HighCVSS 7.5/10Last modified Sep 17, 2026

Description

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

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-122

Affected software

No affected versions have been published.

Timeline

Published
Sep 8, 2026
Last modified
Sep 17, 2026
NVD status
Analyzed

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CVE-2026-77898: High severity, CVSS 7.5 | Vulnix