Is CVE-2017-8686 in the CISA KEV catalog?

No. CVE-2017-8686 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-8686?

CVE-2017-8686 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2017-8686?

CVE-2017-8686 has an EPSS score of 27.50% (98th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2017-8686

CRITICALEPSS 98th pctl

9.8

CVSS v3

NVD

Description

The Windows Server DHCP service in Windows Server 2012 Gold and R2, and Windows Server 2016 allows an attacker to either run arbitrary code on the DHCP failover server or cause the DHCP service to become nonresponsive, due to a memory corruption vulnerability in the Windows Server DHCP service, aka "Windows DHCP Server Remote Code Execution Vulnerability".

CWE-119Buffer Overflow

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

27.50%probability of exploitation in 30 days

98thpercentile

Very high risk: more likely to be exploited than 98% of all known CVEs.

References

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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.