How severe is CVE-2017-8622?

CVE-2017-8622 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-8622 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-8622?

CVE-2017-8622 affects Microsoft Windows 10. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-8622?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2017-8622 published?

CVE-2017-8622 was published on 2017-08-08 and last updated on 2026-06-17.

CVE-2017-8622

CVE-2017-8622 is a high-severity vulnerability in Microsoft Windows 10 with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 7.2
EPSS exploit prediction: 1% (67th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Microsoft Windows 10
Published: 2017-08-08
Last modified: 2026-06-17

Description

Windows Subsystem for Linux in Windows 10 1703 allows an elevation of privilege vulnerability when it fails to properly handle handles NT pipes, aka "Windows Subsystem for Linux Elevation of Privilege Vulnerability".

Frequently asked questions

What is CVE-2017-8622?: Windows Subsystem for Linux in Windows 10 1703 allows an elevation of privilege vulnerability when it fails to properly handle handles NT pipes, aka "Windows Subsystem for Linux Elevation of Privilege Vulnerability".
How severe is CVE-2017-8622?: CVE-2017-8622 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-8622 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-8622?: CVE-2017-8622 affects Microsoft Windows 10. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-8622?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2017-8622 published?: CVE-2017-8622 was published on 2017-08-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:microsoft:windows_10:1703:*:*:*:*:*:*:*

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