A remote code execution vulnerability exists when the Windows font library improperly…
Priority MEDIUM 56Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
A remote code execution vulnerability exists when the Windows font library improperly handles specially crafted embedded fonts, aka "Win32k Graphics Remote Code Execution Vulnerability." This affects Windows 7, Microsoft Office, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2008 R2, Windows Server 2012, Windows Server 2016, Windows 8.1, Windows 10, Windows 10 Servers.
Why it matters now
EPSS 0.1907 97th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Microsoft | Windows 7 | 32-bit Systems Service Pack 1; x64-based Systems Service Pack 1 | — | No fix listed | CNA |
| Microsoft | Microsoft Office | 2016 Click-to-Run (C2R) for 32-bit editions; 2016 Click-to-Run (C2R) for 64-bit editions; 2016 for Mac | — | No fix listed | CNA |
| Microsoft | Windows Server 2012 R2 | (Server Core installation) | — | No fix listed | CNA |
| Microsoft | Windows RT 8.1 | Windows RT 8.1 | — | No fix listed | CNA |
| Microsoft | Windows Server 2008 | 32-bit Systems Service Pack 2; 32-bit Systems Service Pack 2 (Server Core installation); Itanium-Based Systems Service Pack 2; x64-based Systems Service Pack 2; x64-based Systems Service Pack 2 (Server Core installation) | — | No fix listed | CNA |
| Microsoft | Windows Server 2008 R2 | Itanium-Based Systems Service Pack 1; x64-based Systems Service Pack 1; x64-based Systems Service Pack 1 (Server Core installation) | — | No fix listed | CNA |
| Microsoft | Windows Server 2012 | (Server Core installation) | — | No fix listed | CNA |
| Microsoft | Windows Server 2016 | (Server Core installation) | — | No fix listed | CNA |
| Microsoft | Windows 8.1 | 32-bit systems; x64-based systems | — | No fix listed | CNA |
| Microsoft | Windows 10 | 32-bit Systems; Version 1607 for 32-bit Systems; Version 1607 for x64-based Systems; Version 1703 for 32-bit Systems; Version 1703 for x64-based Systems; Version 1709 for 32-bit Systems; Version 1709 for x64-based Systems; Version 1803 for 32-bit Systems; Version 1803 for x64-based Systems; x64-based Systems | — | No fix listed | CNA |
| Microsoft | Windows 10 Servers | version 1709 (Server Core Installation); version 1803 (Server Core Installation) | — | No fix listed | CNA |
- Windows 7 VendorMicrosoft Affected 32-bit Systems Service Pack 1; x64-based Systems Service Pack 1 Fixed in — No fix listed CNA
- Microsoft Office VendorMicrosoft Affected 2016 Click-to-Run (C2R) for 32-bit editions; 2016 Click-to-Run (C2R) for 64-bit editions; 2016 for Mac Fixed in — No fix listed CNA
- Windows Server 2012 R2 VendorMicrosoft Affected (Server Core installation) Fixed in — No fix listed CNA
- Windows RT 8.1 VendorMicrosoft Affected Windows RT 8.1 Fixed in — No fix listed CNA
- Windows Server 2008 VendorMicrosoft Affected 32-bit Systems Service Pack 2; 32-bit Systems Service Pack 2 (Server Core installation); Itanium-Based Systems Service Pack 2; x64-based Systems Service Pack 2; x64-based Systems Service Pack 2 (Server Core installation) Fixed in — No fix listed CNA
- Windows Server 2008 R2 VendorMicrosoft Affected Itanium-Based Systems Service Pack 1; x64-based Systems Service Pack 1; x64-based Systems Service Pack 1 (Server Core installation) Fixed in — No fix listed CNA
- Windows Server 2012 VendorMicrosoft Affected (Server Core installation) Fixed in — No fix listed CNA
- Windows Server 2016 VendorMicrosoft Affected (Server Core installation) Fixed in — No fix listed CNA
- Windows 8.1 VendorMicrosoft Affected 32-bit systems; x64-based systems Fixed in — No fix listed CNA
- Windows 10 VendorMicrosoft Affected 32-bit Systems; Version 1607 for 32-bit Systems; Version 1607 for x64-based Systems; Version 1703 for 32-bit Systems; Version 1703 for x64-based Systems; Version 1709 for 32-bit Systems; Version 1709 for x64-based Systems; Version 1803 for 32-bit Systems; Version 1803 for x64-based Systems; x64-based Systems Fixed in — No fix listed CNA
- Windows 10 Servers VendorMicrosoft Affected version 1709 (Server Core Installation); version 1803 (Server Core Installation) Fixed in — No fix listed CNA
CPE configurations NVD · 18
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:microsoft:office:2016:*:*:*:click-to-run:*:*:* | 2016 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:office_for_mac:2016:*:*:*:*:*:*:* | 2016 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:* | 1607 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_10:1703:*:*:*:*:*:*:* | 1703 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:* | 1709 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:* | 1803 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:rt:*:*:* | not specified by NVD | Vulnerable | Microsoft |
- cpe:2.3:a:microsoft:office:2016:*:*:*:click-to-run:*:*:* Versions 2016 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:office_for_mac:2016:*:*:*:*:*:*:* Versions 2016 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:* Versions 1607 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_10:1703:*:*:*:*:*:*:* Versions 1703 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:* Versions 1709 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:* Versions 1803 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:rt:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
Show 8 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:microsoft:windows_server:2008:r2:sp1:*:*:*:itanium:* | 2008 r2 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server:2008:r2:sp1:*:*:*:x64:* | 2008 r2 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server:2008:sp2:*:*:*:*:*:* | 2008 sp2 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server:2012:*:*:*:*:*:*:* | 2012 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server:2012:r2:*:*:*:*:*:* | 2012 r2 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server:2016:*:*:*:*:*:*:* | 2016 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server:2016:1709:*:*:*:*:*:* | 2016 1709 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server:2016:1803:*:*:*:*:*:* | 2016 1803 | Vulnerable | Microsoft |
- cpe:2.3:o:microsoft:windows_server:2008:r2:sp1:*:*:*:itanium:* Versions 2008 r2 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server:2008:r2:sp1:*:*:*:x64:* Versions 2008 r2 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server:2008:sp2:*:*:*:*:*:* Versions 2008 sp2 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server:2012:*:*:*:*:*:*:* Versions 2012 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server:2012:r2:*:*:*:*:*:* Versions 2012 r2 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server:2016:*:*:*:*:*:*:* Versions 2016 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server:2016:1709:*:*:*:*:*:* Versions 2016 1709 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server:2016:1803:*:*:*:*:*:* Versions 2016 1803 Vulnerable ·Microsoft
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-8332
- 2026-10-03 Alias added: GHSA-4vv4-p383-vwpv
More Microsoft Office vulnerabilities
- TI-2023-09240 Microsoft Outlook Elevation of Privilege Vulnerability KEVCVSS 3.1CRITICAL 9.8
- TI-2019-01013 A remote code execution vulnerability exists in Microsoft Excel software when the… KEVCVSS 3.1HIGH 8.8
- TI-2019-00335 Command injection in Microsoft Office KEVCVSS 3.1HIGH 8.8
- TI-2018-00739 Out-of-bounds write in Microsoft Equation Editor KEVCVSS 3.1HIGH 8.8
- TI-2015-02130 Microsoft PowerPoint 2007 SP3, Word 2007 SP3, PowerPoint 2010 SP2, Word 2010 SP2… KEVCVSS 3.1HIGH 8.8
- TI-2015-01588 Microsoft Office 2013 SP1 and 2013 RT SP1 allows remote attackers to execute arbitrary… KEVCVSS 3.1HIGH 8.8
Sources
- CVE-2018-8332 · CVE Program
- CVE-2018-8332 · NVD
- FIRST EPSS
- GHSA-4vv4-p383-vwpv · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences