CVE-2026-55033CWE-122CWE-190

Microsoft Word Remote Code Execution Vulnerability

High · published July 14, 2026

CVSS v3.1
7.8
EPSS
1%
Percentile
46.6
In the wild
Unconfirmed
What it is

Integer overflow or wraparound in Microsoft Office Word 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 · 46.6th percentile
Weaknesses
CWE-122 · Heap-based Buffer Overflow; CWE-190 · Integer Overflow or Wraparound
Published
2026-07-14T17:08Z
EPSS history
Timeline
  • 14 JUL 17:08Z
    Microsoft Word Remote Code Execution Vulnerability
    cvelistv5