CVE-2026-55046CWE-125

Microsoft Excel Information Disclosure Vulnerability

Medium · published July 14, 2026

CVSS v3.1
5.5
EPSS
1%
Percentile
44.7
In the wild
Unconfirmed
What it is

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

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.00541 · 44.7th percentile
Weakness
CWE-125 · Out-of-bounds Read
Published
2026-07-14T17:08Z
EPSS history
Timeline
  • 14 JUL 17:08Z
    Microsoft Excel Information Disclosure Vulnerability
    cvelistv5