CVE-2025-55243CWE-200

Microsoft OfficePlus Spoofing Vulnerability

High · published September 9, 2025

CVSS v3.1
7.5
EPSS
1%
Percentile
66.8
In the wild
Unconfirmed
What it is

Exposure of sensitive information to an unauthorized actor in Microsoft Office Plus allows an unauthorized attacker to perform spoofing over a network.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.01158 · 66.8th percentile
Weakness
CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor
Published
2025-09-09T17:01Z
EPSS history
Timeline
  • 09 SEP 17:01Z
    Microsoft OfficePlus Spoofing Vulnerability
    cvelistv5