Graphic Fonts
CVE-2019-1456 — OpenType Font Parsing Remote Code Execution Vulnerability
Executive Summary
A remote code execution vulnerability exists in Microsoft Windows when the Windows Adobe Type Manager Library improperly handles specially crafted OpenType fonts. For all systems except Windows 10, an attacker who successfully exploited the vulnerability could execute code remotely. For systems running Windows 10, an attacker who successfully exploited the vulnerability could execute code in an AppContainer sandbox context with limited privileges and capabilities. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. There are multiple ways an attacker could exploit the vulnerability, such as by either convincing a user to open a specially crafted document, or by convincing a user to visit a webpage that contains specially crafted embedded OpenType fonts. The update addresses the vulnerability by correcting how the Windows Adobe Type Manager Library handles OpenType fonts.
Overview
7.8
CVSS HIGH
Important
MS Severity
Not Exploited
MS Exploit Status
Not Found
MS Exploit Likelihood
CVSS Vector
ATTACK VECTOR
Local
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
None
USER INTERACTION
Required
SCOPE
Unchanged
Temporal Score: 7.0
EPSS Score
0.09071
probability of exploitation in the next 30 days
0.94633 percentile - updated 2026-06-20
View on FIRST.org
Affected Products
39 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| Windows 10 for 32-bit Systems | 4525232 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows 10 for x64-based Systems | 4525232 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows 10 Version 1607 for 32-bit Systems | 4525236 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows 10 Version 1607 for x64-based Systems | 4525236 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows 10 Version 1709 for 32-bit Systems | 4525241 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows 10 Version 1709 for ARM64-based Systems | 4525241 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows 10 Version 1709 for x64-based Systems | 4525241 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows 10 Version 1803 for 32-bit Systems | 4525237 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows 10 Version 1803 for ARM64-based Systems | 4525237 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows 10 Version 1803 for x64-based Systems | 4525237 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows 10 Version 1809 for 32-bit Systems | 4523205 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows 10 Version 1809 for ARM64-based Systems | 4523205 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows 10 Version 1809 for x64-based Systems | 4523205 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows 10 Version 1903 for 32-bit Systems | 4524570 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows 10 Version 1903 for ARM64-based Systems | 4524570 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows 10 Version 1903 for x64-based Systems | 4524570 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows 7 for 32-bit Systems Service Pack 1 | 4525235 (Monthly Rollup) 4525233 (Security Only) |
Important | Remote Code Execution | Yes |
| Windows 7 for x64-based Systems Service Pack 1 | 4525235 (Monthly Rollup) 4525233 (Security Only) |
Important | Remote Code Execution | Yes |
| Windows 8.1 for 32-bit systems | 4525243 (Monthly Rollup) 4525250 (Security Only) |
Important | Remote Code Execution | Yes |
| Windows 8.1 for x64-based systems | 4525243 (Monthly Rollup) 4525250 (Security Only) |
Important | Remote Code Execution | Yes |
| Windows RT 8.1 | 4525243 (Monthly Rollup) |
Important | Remote Code Execution | Yes |
| Windows Server 2008 for 32-bit Systems Service Pack 2 | 4525234 (Monthly Rollup) 4525239 (Security Only) |
Important | Remote Code Execution | Yes |
| Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) | 4525234 (Monthly Rollup) 4525239 (Security Only) |
Important | Remote Code Execution | Yes |
| Windows Server 2008 for Itanium-Based Systems Service Pack 2 | 4525234 (Monthly Rollup) 4525239 (Security Only) |
Important | Remote Code Execution | Yes |
| Windows Server 2008 for x64-based Systems Service Pack 2 | 4525234 (Monthly Rollup) 4525239 (Security Only) |
Important | Remote Code Execution | Yes |
| Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | 4525234 (Monthly Rollup) 4525239 (Security Only) |
Important | Remote Code Execution | Yes |
| Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 | 4525235 (Monthly Rollup) 4525233 (Security Only) |
Important | Remote Code Execution | Yes |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 | 4525235 (Monthly Rollup) 4525233 (Security Only) |
Important | Remote Code Execution | Yes |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | 4525235 (Monthly Rollup) 4525233 (Security Only) |
Important | Remote Code Execution | Yes |
| Windows Server 2012 | 4525246 (Monthly Rollup) 4525253 (Security Only) |
Important | Remote Code Execution | Yes |
| Windows Server 2012 (Server Core installation) | 4525246 (Monthly Rollup) 4525253 (Security Only) |
Important | Remote Code Execution | Yes |
| Windows Server 2012 R2 | 4525243 (Monthly Rollup) 4525250 (Security Only) |
Important | Remote Code Execution | Yes |
| Windows Server 2012 R2 (Server Core installation) | 4525243 (Monthly Rollup) 4525250 (Security Only) |
Important | Remote Code Execution | Yes |
| Windows Server 2016 | 4525236 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows Server 2016 (Server Core installation) | 4525236 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows Server 2019 | 4523205 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows Server 2019 (Server Core installation) | 4523205 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows Server, version 1803 (Server Core Installation) | 4525237 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows Server, version 1903 (Server Core installation) | 4524570 (Security Update) |
Important | Remote Code Execution | Yes |
Patches
11 patches
| Article | Type | Restart |
|---|---|---|
4525232 |
Security Update | Yes |
4525236 |
Security Update | Yes |
4525241 |
Security Update | Yes |
4525237 |
Security Update | Yes |
4523205 |
Security Update | Yes |
4524570 |
Security Update | Yes |
4525235 (Monthly Rollup) 4525233 |
Monthly Rollup | Yes |
4525243 (Monthly Rollup) 4525250 |
Monthly Rollup | Yes |
4525243 |
Monthly Rollup | Yes |
4525234 (Monthly Rollup) 4525239 |
Monthly Rollup | Yes |
4525246 (Monthly Rollup) 4525253 |
Monthly Rollup | Yes |
Known Exploits
No known exploits have been linked for this CVE yet. When available, exploit references will be sourced from public repositories and may be unverified, incomplete, or non-functional. Always review code carefully before use in any environment.
Acknowledgments
References
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