CVE-2026-23656CWE-345

Windows App Installer Spoofing Vulnerability

Medium · published March 10, 2026

CVSS v3.1
5.9
EPSS
0%
Percentile
22.4
In the wild
Unconfirmed
What it is

Insufficient verification of data authenticity in Windows App Installer allows an unauthorized attacker to perform spoofing over a network.

The record
Technical detail
CVSS v3.1
5.9 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.00308 · 22.4th percentile
Weakness
CWE-345 · Insufficient Verification of Data Authenticity
Published
2026-03-10T17:05Z
EPSS history
Timeline
  • 10 MAR 17:05Z
    Windows App Installer Spoofing Vulnerability
    cvelistv5