CVE-2026-88143CWE-122CWE-191

CVE-2026-88143

Medium · published October 13, 2026

CVSS v3.1
6.7
EPSS
0%
Percentile
16.3
In the wild
Unconfirmed
What it is

Heap-based buffer overflow in Windows Storage Spaces Controller allows an authorized attacker to elevate privileges locally.

The record
Technical detail
CVSS v3.1
6.7 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00256 · 16.3th percentile
Weaknesses
CWE-122 · Heap-based Buffer Overflow; CWE-191 · Integer Underflow (Wrap or Wraparound)
Published
2026-10-13T23:21Z
References (1)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88143 · [email protected]
EPSS history
Timeline
  • 15 OCT 03:35Z
    EPSS moved — → 0%
    epss
  • 13 OCT 19:00Z
    Windows Storage Spaces Controller Elevation of Privilege Vulnerability
    cvelistv5
  • 13 OCT 19:00Z
    Windows Storage Spaces Controller Elevation of Privilege Vulnerability
    cvelistv5