CVE-2026-108451CWE-122CWE-197

CVE-2026-108451

High · published October 16, 2026

CVSS v3.1
8.8
EPSS
0%
Percentile
36.5
In the wild
Unconfirmed
What it is

Numeric truncation error in Microsoft Office Word allows an unauthorized attacker to execute code over a network.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00432 · 36.5th percentile
Weaknesses
CWE-122 · Heap-based Buffer Overflow; CWE-197 · Numeric Truncation Error
Published
2026-10-16T01:17Z
Affected products (6)
ProductVersionsFixed in
microsoft/365_appsall versions—
microsoft/365_appsall versions—
microsoft/office_2021all versions—
microsoft/office_2021all versions—
microsoft/office_2024all versions—
microsoft/office_2024all versions—
References (1)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-108451 · [email protected]
EPSS history
Timeline
  • 17 OCT 03:28Z
    EPSS moved — → 0%
    epss
  • 15 OCT 20:57Z
    Microsoft Office Word Remote Code Execution Vulnerability
    cvelistv5
  • 15 OCT 20:57Z
    Microsoft Office Word Remote Code Execution Vulnerability
    cvelistv5