How severe is CVE-2017-8703?

CVE-2017-8703 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2017-8703 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-8703?

CVE-2017-8703 affects Microsoft Windows 10. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-8703?

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

When was CVE-2017-8703 published?

CVE-2017-8703 was published on 2017-10-13 and last updated on 2026-06-17.

CVE-2017-8703

CVE-2017-8703 is a medium-severity vulnerability in Microsoft Windows 10 with a CVSS 3.x base score of 5.5. 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-119.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 4.9
EPSS exploit prediction: 2% (74th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Microsoft Windows 10
Published: 2017-10-13
Last modified: 2026-06-17

Description

The Microsoft Windows Subsystem for Linux on Microsoft Windows 10 1703 allows a denial of service vulnerability when it improperly handles objects in memory, aka "Windows Subsystem for Linux Denial of Service Vulnerability".

Frequently asked questions

What is CVE-2017-8703?: The Microsoft Windows Subsystem for Linux on Microsoft Windows 10 1703 allows a denial of service vulnerability when it improperly handles objects in memory, aka "Windows Subsystem for Linux Denial of Service Vulnerability".
How severe is CVE-2017-8703?: CVE-2017-8703 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2017-8703 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-8703?: CVE-2017-8703 affects Microsoft Windows 10. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-8703?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-8703 published?: CVE-2017-8703 was published on 2017-10-13 and last updated on 2026-06-17.

References

Affected products (1)

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

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