CVE-2026-20821 — Sensitive Information Exposure in Microsoft Windows 10 Version 1607

CWE-200 — Sensitive Information Exposure5 documents5 sources
Severity
6.2MEDIUMNVD
EPSS
0.0%
top 87.69%
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

Exposure of sensitive information to an unauthorized actor in Windows Remote Procedure Call allows an unauthorized attacker to disclose information locally.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NExploitability: 2.5 | 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
Remote Procedure Call Information Disclosure Vulnerability↗2026-01-13
▶
GHSA
GHSA-5hhg-fcqc-m87m: Exposure of sensitive information to an unauthorized actor in Windows Remote Procedure Call allows an unauthorized attacker to disclose information lo↗2026-01-13
▶

📋Vendor Advisories

1
Microsoft
Remote Procedure Call Information Disclosure Vulnerability↗2026-01-13
▶

🕵️Threat Intelligence

1
Wiz
CVE-2026-20821 Impact, Exploitability, and Mitigation Steps | Wiz↗
▶
CVE-2026-20821 — Sensitive Information Exposure | cvebase