CVE-2026-50428CWE-125

Windows Container Isolation FS Filter Driver (unionfs.sys) Information Disclosure Vulnerability

High · published July 14, 2026

CVSS v3.1
7.1
EPSS
0%
Percentile
34.3
In the wild
Unconfirmed
What it is

Out-of-bounds read in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to disclose information locally.

The record
Technical detail
CVSS v3.1
7.1 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H/E:U/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.00412 · 34.3th percentile
Weakness
CWE-125 · Out-of-bounds Read
Published
2026-07-14T17:06Z
EPSS history
Timeline
  • 14 JUL 17:06Z
    Windows Container Isolation FS Filter Driver (unionfs.sys) Information Disclosure Vulnerability
    cvelistv5