CVE-2026-45475CWE-122

Microsoft Office Remote Code Execution Vulnerability

High · published June 9, 2026

CVSS v3.1
7.8
EPSS
1%
Percentile
46.5
In the wild
Unconfirmed
What it is

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

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.00571 · 46.5th percentile
Weakness
CWE-122 · Heap-based Buffer Overflow
Published
2026-06-09T17:04Z
EPSS history
Timeline
  • 09 JUN 17:04Z
    Microsoft Office Remote Code Execution Vulnerability
    cvelistv5