CVE-2026-20834 — Absolute Path Traversal in Microsoft Windows 10 Version 1607

CWE-36 — Absolute Path TraversalCWE-359 — Exposure of Private Personal Information to an Unauthorized Actor5 documents5 sources
Severity
4.6MEDIUMNVD
EPSS
0.1%
top 81.15%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
25
Microsoft Windows 10 Version 1607Microsoft Windows 10 Version 1809Microsoft Windows 10 Version 21h2+22 more
Timeline
PublishedJan 13

Description

Absolute path traversal in Windows Shell allows an unauthorized attacker to perform spoofing with a physical attack.

CVSS vector

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NExploitability: 0.9 | Impact: 3.6

Affected Packages24 packages

▶NVDmicrosoft/windows< 10.0.14393.8783+5
▶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
Windows Spoofing Vulnerability↗2026-01-13
▶
GHSA
GHSA-p3j8-q3f7-m9xc: Absolute path traversal in Windows Shell allows an unauthorized attacker to perform spoofing with a physical attack↗2026-01-13
▶

📋Vendor Advisories

1
Microsoft
Windows Spoofing Vulnerability↗2026-01-13
▶

🕵️Threat Intelligence

1
Wiz
CVE-2026-20834 Impact, Exploitability, and Mitigation Steps | Wiz↗
▶
CVE-2026-20834 — Absolute Path Traversal in Microsoft | cvebase