CVE-2026-27917

CWE-416 — Use After Free2 documents2 sources
Severity
7.0HIGH
EPSS
No EPSS data
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
18
Microsoft Windows 10 Version 1607Microsoft Windows 10 Version 1809Microsoft Windows 10 Version 21h2+15 more
Timeline
PublishedApr 14

Description

Use after free in Windows WFP NDIS Lightweight Filter Driver (wfplwfs.sys) allows an authorized attacker to elevate privileges locally.

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.0 | Impact: 5.9

Affected Packages18 packages

▶CVEListV5microsoft/windows_server_201610.0.14393.0 — 10.0.14393.9060
▶CVEListV5microsoft/windows_server_201910.0.17763.0 — 10.0.17763.8644
▶CVEListV5microsoft/windows_server_202210.0.20348.0 — 10.0.20348.5020
▶CVEListV5microsoft/windows_server_202510.0.26100.0 — 10.0.26100.32690
▶CVEListV5microsoft/windows_server_2012_r26.3.9600.0 — 6.3.9600.23132

🔴Vulnerability Details

1
CVEList
Windows WFP NDIS Lightweight Filter Driver (wfplwfs.sys) Elevation of Privilege Vulnerability↗2026-04-14
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CVE-2026-27917 (HIGH CVSS 7) | Use after free in Windows WFP NDIS | cvebase.io