How severe is CVE-2018-8140?

CVE-2018-8140 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-8140 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-2018-8140?

CVE-2018-8140 primarily affects Microsoft Windows 10. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-8140?

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

When was CVE-2018-8140 published?

CVE-2018-8140 was published on 2018-06-14 and last updated on 2026-06-17.

CVE-2018-8140

CVE-2018-8140 is a medium-severity vulnerability in Microsoft Windows 10 with a CVSS 3.x base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 6.8)
CVSS v2: 4.6
EPSS exploit prediction: 2% (74th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Microsoft Windows 10
Published: 2018-06-14
Last modified: 2026-06-17

Description

An Elevation of Privilege vulnerability exists when Cortana retrieves data from user input services without consideration for status, aka "Cortana Elevation of Privilege Vulnerability." This affects Windows 10 Servers, Windows 10.

Frequently asked questions

What is CVE-2018-8140?: An Elevation of Privilege vulnerability exists when Cortana retrieves data from user input services without consideration for status, aka "Cortana Elevation of Privilege Vulnerability." This affects Windows 10 Servers, Windows 10.
How severe is CVE-2018-8140?: CVE-2018-8140 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-8140 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-2018-8140?: CVE-2018-8140 primarily affects Microsoft Windows 10. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-8140?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-8140 published?: CVE-2018-8140 was published on 2018-06-14 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_1803:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2016:1709:*:*:*:*:*:*:*

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