Is CVE-2017-8578 in the CISA KEV catalog?

No. CVE-2017-8578 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-8578?

CVE-2017-8578 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2017-8578?

CVE-2017-8578 has an EPSS score of 6.47% (93th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2017-8578?

No published fix for CVE-2017-8578 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2017-8578

HIGHEPSS 93th pctl

7.8

CVSS v3

NVD

Description

Win32k in Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016 allows an elevation of privilege vulnerability when it fails to properly handle objects in memory, aka "Win32k Elevation of Privilege Vulnerability". This CVE ID is unique from CVE-2017-8577, CVE-2017-8580, CVE-2017-8581, and CVE-2017-8467.

CWE-281

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploit Intelligence

6.47%probability of exploitation in 30 days

93rdpercentile

High risk: more likely to be exploited than 93% of all known CVEs.

References

Patch1

portal.msrc.microsoft.com

Third-Party Advisory2

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-13.