How severe is CVE-2018-8337?

CVE-2018-8337 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2018-8337 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-8337?

CVE-2018-8337 primarily affects Microsoft Windows 10. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-8337?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-8337 published?

CVE-2018-8337 was published on 2018-09-13 and last updated on 2026-06-17.

CVE-2018-8337

CVE-2018-8337 is a medium-severity vulnerability in Microsoft Windows 10 with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-178.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 4.6
EPSS exploit prediction: 1% (71st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-178
Affected product: Microsoft Windows 10
Published: 2018-09-13
Last modified: 2026-06-17

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.

Frequently asked questions

What is 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.
How severe is CVE-2018-8337?: CVE-2018-8337 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2018-8337 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-8337?: CVE-2018-8337 primarily affects Microsoft Windows 10. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-8337?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-8337 published?: CVE-2018-8337 was published on 2018-09-13 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2016:1709:*:*:*:*:*:*:*

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