SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2017-8686

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…

CRITICAL 9.8EPSS 27.5%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 27.5%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.

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".

CVSS 3.0
9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
27.50% probability · 98th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-119
Affected
microsoft/windows server 2012 · microsoft/windows server 2016
Source
secure@microsoft.com
EPSS trend
0%15%30%21 September 2026: 25.25%22 September 2026: 27.50%27 October 2026: 27.50%21 September 202627 October 2026

EPSS moved from 25.3% on 21 September 2026 to 27.5% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.