CVE-2026-20812 — Improper Input Validation in Microsoft Windows 10 Version 1607

CWE-20 — Improper Input Validation5 documents5 sources
Severity
6.5MEDIUMNVD
EPSS
0.1%
top 78.92%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
20
Microsoft Windows 10 Version 1607Microsoft Windows 10 Version 1809Microsoft Windows 10 Version 21h2+17 more
Timeline
PublishedJan 13

Description

Improper input validation in Windows LDAP - Lightweight Directory Access Protocol allows an authorized attacker to perform tampering over a network.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:NExploitability: 2.8 | Impact: 3.6

Affected Packages20 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
GHSA
GHSA-r6w8-mhf4-6w54: Improper input validation in Windows LDAP - Lightweight Directory Access Protocol allows an authorized attacker to perform tampering over a network↗2026-01-13
▶
CVEList
LDAP Tampering Vulnerability↗2026-01-13
▶

📋Vendor Advisories

1
Microsoft
LDAP Tampering Vulnerability↗2026-01-13
▶

🕵️Threat Intelligence

1
Wiz
CVE-2026-20812 Impact, Exploitability, and Mitigation Steps | Wiz↗
▶
CVE-2026-20812 — Improper Input Validation in Microsoft | cvebase