CVE-2026-27907 — Integer Underflow (Wrap or Wraparound) in Microsoft Windows 11 Version 22h3

CWE-191 — Integer Underflow (Wrap or Wraparound)3 documents3 sources
Severity
7.8HIGHNVD
EPSS
0.1%
top 75.98%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
6
Microsoft Windows 11 Version 22h3Microsoft Windows 11 Version 23h2Microsoft Windows 11 Version 24h2+3 more
Timeline
PublishedApr 14

Description

Integer underflow (wrap or wraparound) in Windows Storage Spaces Controller allows an authorized attacker to elevate privileges locally.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages6 packages

▶CVEListV5microsoft/windows_server_202510.0.26100.0 — 10.0.26100.32690
▶CVEListV5microsoft/windows_11_version_22h310.0.22631.0 — 10.0.22631.6936
▶CVEListV5microsoft/windows_11_version_23h210.0.22631.0 — 10.0.22631.6936
▶CVEListV5microsoft/windows_11_version_24h210.0.26100.0 — 10.0.26100.8246
▶CVEListV5microsoft/windows_11_version_25h210.0.26200.0 — 10.0.26200.8246

🔴Vulnerability Details

2
GHSA
GHSA-p98g-6f6c-423f: Integer underflow (wrap or wraparound) in Windows Storage Spaces Controller allows an authorized attacker to elevate privileges locally↗2026-04-14
▶
CVEList
Windows Storage Spaces Controller Elevation of Privilege Vulnerability↗2026-04-14
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