VULNERABILITY INTELLIGENCE

CVE-2026-77898

CVSS score7.5 HIGH
EPSS probability0.61%
CISA KEVNot currently listed
Published2026-09-08
Last modified2026-09-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Description

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

Weakness classification

  • secure@microsoft.com: CWE-122

Primary references