Critical CVSS 8.8 EPSS 0.13904 2019-08 archive

Executive Summary

A remote code execution vulnerability exists when the Windows font library improperly handles specially crafted embedded fonts. An attacker who successfully exploited the vulnerability could take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights. There are multiple ways an attacker could exploit the vulnerability: In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit the vulnerability and then convince users to view the website. An attacker would have no way to force users to view the attacker-controlled content. Instead, an attacker would have to convince users to take action, typically by getting them to click a link in an email or instant message that takes users to the attacker's website, or by opening an attachment sent through email. In a file-sharing attack scenario, an attacker could provide a specially crafted document file designed to exploit the vulnerability and then convince users to open the document file. The security update addresses the vulnerability by correcting how the Windows font library handles embedded fonts.

Overview

8.8
CVSS HIGH
Critical
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
Category Remote Code Execution
Released Aug 13 2019
Last Updated Aug 13 2019
Publicly Disclosed No
CISA KEV Not Listed
Known Exploits None Known
EPSS Score 0.13904 — 0.96058 percentile

CVSS Vector

ATTACK VECTOR
Network
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
None
USER INTERACTION
Required
SCOPE
Unchanged
Temporal Score: 7.9

EPSS Score

0.13904
probability of exploitation in the next 30 days
0.96058 percentile - updated 2026-06-20
View on FIRST.org

Affected Products

42 affected products
Product KB Article Severity Impact Restart Required
Microsoft Office 2019 for Mac Release Notes (Security Update) Critical Remote Code Execution No
Windows 10 for 32-bit Systems 4512497 (Security Update) Critical Remote Code Execution Yes
Windows 10 for x64-based Systems 4512497 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1607 for 32-bit Systems 4512517 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1607 for x64-based Systems 4512517 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1703 for 32-bit Systems 4512507 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1703 for x64-based Systems 4512507 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1709 for 32-bit Systems 4512516 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1709 for ARM64-based Systems 4512516 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1709 for x64-based Systems 4512516 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1803 for 32-bit Systems 4512501 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1803 for ARM64-based Systems 4512501 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1803 for x64-based Systems 4512501 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1809 for 32-bit Systems 4511553 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1809 for ARM64-based Systems 4511553 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1809 for x64-based Systems 4511553 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1903 for 32-bit Systems 4512508 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1903 for ARM64-based Systems 4512508 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1903 for x64-based Systems 4512508 (Security Update) Critical Remote Code Execution Yes
Windows 7 for 32-bit Systems Service Pack 1 4512506 (Monthly Rollup) 4512486 (Security Only) Critical Remote Code Execution Yes
Windows 7 for x64-based Systems Service Pack 1 4512506 (Monthly Rollup) 4512486 (Security Only) Critical Remote Code Execution Yes
Windows 8.1 for 32-bit systems 4512488 (Monthly Rollup) 4512489 (Security Only) Critical Remote Code Execution Yes
Windows 8.1 for x64-based systems 4512488 (Monthly Rollup) 4512489 (Security Only) Critical Remote Code Execution Yes
Windows RT 8.1 4512488 (Monthly Rollup) Critical Remote Code Execution Yes
Windows Server 2008 for 32-bit Systems Service Pack 2 4512476 (Monthly Rollup) 4512491 (Security Only) Critical Remote Code Execution Yes
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 4512476 (Monthly Rollup) 4512491 (Security Only) Critical Remote Code Execution Yes
Windows Server 2008 for Itanium-Based Systems Service Pack 2 4512476 (Monthly Rollup) 4512491 (Security Only) Critical Remote Code Execution Yes
Windows Server 2008 for x64-based Systems Service Pack 2 4512476 (Monthly Rollup) 4512491 (Security Only) Critical Remote Code Execution Yes
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 4512476 (Monthly Rollup) 4512491 (Security Only) Critical Remote Code Execution Yes
Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 4512506 (Monthly Rollup) 4512486 (Security Only) Critical Remote Code Execution Yes
Windows Server 2008 R2 for x64-based Systems Service Pack 1 4512506 (Monthly Rollup) 4512486 (Security Only) Critical Remote Code Execution Yes
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 4512506 (Monthly Rollup) 4512486 (Security Only) Critical Remote Code Execution Yes
Windows Server 2012 4512518 (Monthly Rollup) 4512482 (Security Only) Critical Remote Code Execution Yes
Windows Server 2012 (Server Core installation) 4512518 (Monthly Rollup) 4512482 (Security Only) Critical Remote Code Execution Yes
Windows Server 2012 R2 4512488 (Monthly Rollup) 4512489 (Security Only) Critical Remote Code Execution Yes
Windows Server 2012 R2 (Server Core installation) 4512488 (Monthly Rollup) 4512489 (Security Only) Critical Remote Code Execution Yes
Windows Server 2016 4512517 (Security Update) Critical Remote Code Execution Yes
Windows Server 2016 (Server Core installation) 4512517 (Security Update) Critical Remote Code Execution Yes
Windows Server 2019 4511553 (Security Update) Critical Remote Code Execution Yes
Windows Server 2019 (Server Core installation) 4511553 (Security Update) Critical Remote Code Execution Yes
Windows Server, version 1803 (Server Core Installation) 4512501 (Security Update) Critical Remote Code Execution Yes
Windows Server, version 1903 (Server Core installation) 4512508 (Security Update) Critical Remote Code Execution Yes

Patches

13 patches
Article Type Restart
Release Notes Security Update No
4512497 Security Update Yes
4512517 Security Update Yes
4512507 Security Update Yes
4512516 Security Update Yes
4512501 Security Update Yes
4511553 Security Update Yes
4512508 Security Update Yes
4512506 (Monthly Rollup) 4512486 Monthly Rollup Yes
4512488 (Monthly Rollup) 4512489 Monthly Rollup Yes
4512488 Monthly Rollup Yes
4512476 (Monthly Rollup) 4512491 Monthly Rollup Yes
4512518 (Monthly Rollup) 4512482 Monthly Rollup Yes

Known Exploits

Acknowledgments