CVE-2026-20818 — Log File Information Exposure in Microsoft Windows Server 2016

CWE-532 — Log File Information Exposure5 documents5 sources
Severity
6.2MEDIUMNVD
EPSS
0.0%
top 87.69%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
5
Microsoft Windows Server 2016Microsoft Windows Server 2019Microsoft Windows Server 2022+2 more
Timeline
PublishedJan 13

Description

Insertion of sensitive information into log file in Windows Kernel 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 Packages5 packages

▶NVDmicrosoft/windows< 10.0.14393.8783+4
▶CVEListV5microsoft/windows_server_201610.0.14393.0 — 10.0.14393.8783
▶CVEListV5microsoft/windows_server_201910.0.17763.0 — 10.0.17763.8276
▶CVEListV5microsoft/windows_server_202210.0.20348.0 — 10.0.20348.4648
▶CVEListV5microsoft/windows_server_202510.0.26100.0 — 10.0.26100.32230

🔴Vulnerability Details

2
GHSA
GHSA-hxrp-mjg3-hpmr: Insertion of sensitive information into log file in Windows Kernel allows an unauthorized attacker to disclose information locally↗2026-01-13
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CVEList
Windows Kernel Information Disclosure Vulnerability↗2026-01-13
▶

📋Vendor Advisories

1
Microsoft
Windows Kernel Information Disclosure Vulnerability↗2026-01-13
▶

🕵️Threat Intelligence

1
Wiz
CVE-2026-20818 Impact, Exploitability, and Mitigation Steps | Wiz↗
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CVE-2026-20818 — Log File Information Exposure | cvebase