SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-8337

A security feature bypass vulnerability exists when Windows Subsystem for Linux improperly handles case sensitivity, aka "Windows Subsystem for Linux Security Feature Bypass Vulnerability." This affects Windows 10, Windows 10 Servers.

MEDIUM 5.3EPSS 1.47%

Does this matter?

Lower severity and a low EPSS score (1.47%). Track it; it rarely justifies an emergency change on its own.

Description

A security feature bypass vulnerability exists when Windows Subsystem for Linux improperly handles case sensitivity, aka "Windows Subsystem for Linux Security Feature Bypass Vulnerability." This affects Windows 10, Windows 10 Servers.

CVSS 3.0
5.3 MEDIUMCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
EPSS
1.47% probability · 74th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-178
Affected
microsoft/windows 10 · microsoft/windows server 2016
Source
secure@microsoft.com
EPSS trend
0%3%5%27 October 2026: 1.47%27 October 202627 October 2026

EPSS 1.5% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.