CVE-2026-20826

CWE-362 — Race Condition5 documents5 sources
Severity
7.0HIGH
EPSS
0.0%
top 93.34%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
23
Microsoft Windows 10 Version 1607Microsoft Windows 10 Version 1809Microsoft Windows 10 Version 21h2+20 more
Timeline
PublishedJan 13

Description

Concurrent execution using shared resource with improper synchronization ('race condition') in Tablet Windows User Interface (TWINUI) Subsystem 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 Packages23 packages

▶NVDmicrosoft/windows< 10.0.14393.8783+4
▶NVDmicrosoft/windows_10_1607< 10.0.14393.8783
▶NVDmicrosoft/windows_10_1809< 10.0.17763.8276
▶NVDmicrosoft/windows_10_21h2< 10.0.19044.6809
▶NVDmicrosoft/windows_10_22h2< 10.0.19045.6809

🔴Vulnerability Details

2
CVEList
Tablet Windows User Interface (TWINUI) Subsystem Information Disclosure Vulnerability↗2026-01-13
▶
GHSA
GHSA-5vr2-9mm9-8m2q: Concurrent execution using shared resource with improper synchronization ('race condition') in Tablet Windows User Interface (TWINUI) Subsystem allows↗2026-01-13
▶

📋Vendor Advisories

1
Microsoft
Tablet Windows User Interface (TWINUI) Subsystem Information Disclosure Vulnerability↗2026-01-13
▶

🕵️Threat Intelligence

1
Wiz
CVE-2026-20826 Impact, Exploitability, and Mitigation Steps | Wiz↗
▶
CVE-2026-20826 (HIGH CVSS 7) | Concurrent execution using shared r | cvebase.io