Is CVE-2017-8465 in the CISA KEV catalog?

No. CVE-2017-8465 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-8465?

CVE-2017-8465 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2017-8465?

CVE-2017-8465 has an EPSS score of 2.34% (82th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2017-8465?

No published fix for CVE-2017-8465 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2017-8465

HIGHEPSS 82th pctl

7.8

CVSS v3

NVD

Description

Microsoft Windows 8.1 and Windows RT 8.1, Windows Server 2012 R2, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016 allow an attacker to run processes in an elevated context when the Windows kernel improperly handles objects in memory, aka "Win32k Elevation of Privilege Vulnerability." This CVE ID is unique from CVE-2017-8468.

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.

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CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

2.34%probability of exploitation in 30 days

82ndpercentile

Elevated risk: more likely to be exploited than 82% of all known CVEs.

References

Patch1

portal.msrc.microsoft.com

Third-Party Advisory1

securityfocus.com

Related Vulnerabilities

Other CWE-281 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2017-8543	Critical	9.8	74%	KEV	-
CVE-2019-0233	High	7.5	69%	-	-
CVE-2017-8589	Critical	9.8	26%	-	-
CVE-2021-33990	Critical	9.8	12%	-	-
CVE-2017-8563	High	8.1	7.2%	-	-
CVE-2017-8578	High	7.8	6.5%	-	-

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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.