CVE-2026-26109CWE-125

Microsoft Excel Remote Code Execution Vulnerability

High · published March 10, 2026

CVSS v3.1
8.4
EPSS
0%
Percentile
27.4
In the wild
Unconfirmed
What it is

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

The record
Technical detail
CVSS v3.1
8.4 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.00350 · 27.4th percentile
Weakness
CWE-125 · Out-of-bounds Read
Published
2026-03-10T17:05Z
EPSS history
Timeline
  • 10 MAR 17:05Z
    Microsoft Excel Remote Code Execution Vulnerability
    cvelistv5