CVE-2026-26108CWE-122

Microsoft Excel Remote Code Execution Vulnerability

High · published March 10, 2026

CVSS v3.1
7.8
EPSS
0%
Percentile
40.8
In the wild
Unconfirmed
What it is

Heap-based buffer overflow in Microsoft Office Excel 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
0.00485 · 40.8th percentile
Weakness
CWE-122 · Heap-based Buffer Overflow
Published
2026-03-10T17:05Z
EPSS history
Timeline
  • 10 MAR 17:05Z
    Microsoft Excel Remote Code Execution Vulnerability
    cvelistv5