How severe is CVE-2018-8495?

CVE-2018-8495 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-8495 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 56% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-8495?

CVE-2018-8495 primarily affects Microsoft Windows 10. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-8495?

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-2018-8495 published?

CVE-2018-8495 was published on 2018-10-10 and last updated on 2026-06-17.

CVE-2018-8495

CVE-2018-8495 is a high-severity vulnerability in Microsoft Windows 10 with a CVSS 3.x base score of 7.5. Its EPSS exploit-prediction score of 56% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-22.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 7.6
EPSS exploit prediction: 56% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Microsoft Windows 10
Published: 2018-10-10
Last modified: 2026-06-17

Description

A remote code execution vulnerability exists when Windows Shell improperly handles URIs, aka "Windows Shell Remote Code Execution Vulnerability." This affects Windows Server 2016, Windows 10, Windows 10 Servers.

Frequently asked questions

What is CVE-2018-8495?: A remote code execution vulnerability exists when Windows Shell improperly handles URIs, aka "Windows Shell Remote Code Execution Vulnerability." This affects Windows Server 2016, Windows 10, Windows 10 Servers.
How severe is CVE-2018-8495?: CVE-2018-8495 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-8495 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 56% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-8495?: CVE-2018-8495 primarily affects Microsoft Windows 10. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-8495?: 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-2018-8495 published?: CVE-2018-8495 was published on 2018-10-10 and last updated on 2026-06-17.

References

Affected products (7)

cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:1703:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2016:1709:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2016:1803:*:*:*:*:*:*:*

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