SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2017-8683

Windows graphics on 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 attacker to execute remote code by…

EXPLOIT ✓MEDIUM 5.5EPSS 22.6%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 22.6%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.

Description

Windows graphics on 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 attacker to execute remote code by the way it handles embedded fonts, aka "Win32k Graphics Remote Code Execution Vulnerability". This CVE ID is unique from CVE-2017-8682.

CVSS 3.0
5.5 MEDIUMCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS
22.55% probability · 98th percentile
Public exploits
1 in Exploit-DB · verified · first 18 September 2017
CISA KEV
Not listed
Weakness
CWE-200
Affected
microsoft/windows 10 · microsoft/windows 7 · microsoft/windows 8.1 · microsoft/windows server 2008 · microsoft/windows server 2012 · microsoft/windows server 2016
Source
secure@microsoft.com
EPSS trend
0%15%30%21 September 2026: 27.53%22 September 2026: 22.55%27 October 2026: 22.55%21 September 202627 October 2026

EPSS moved from 27.5% on 21 September 2026 to 22.6% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-42746source ↗Microsoft Windows Kernel - 'win32k.sys' '.TTF' Font Processing Out-of-Bounds Read with Malformed 'glyf' Table 'win32k!fsc_CalcGrayRow' (Denial of Service)windows · Google Security Researchdos18 September 2017yes

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