Microsoft Windows
CVE-2019-0603 — Windows Deployment Services TFTP Server Remote Code Execution Vulnerability
Executive Summary
A remote code execution vulnerability exists in the way that Windows Deployment Services TFTP Server handles objects in memory. An attacker who successfully exploited the vulnerability could execute arbitrary code with elevated permissions on a target system. To exploit the vulnerability, an attacker could create a specially crafted request, causing Windows to execute arbitrary code with elevated permissions. The security update addresses the vulnerability by correcting how Windows Deployment Services TFTP Server handles objects in memory.
Overview
7.5
CVSS HIGH
Critical
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
CVSS Vector
ATTACK VECTOR
Network
ATTACK COMPLEXITY
High
PRIVILEGES REQUIRED
Low
USER INTERACTION
None
SCOPE
Unchanged
Temporal Score: 6.7
EPSS Score
0.34209
probability of exploitation in the next 30 days
0.98192 percentile - updated 2026-06-20
View on FIRST.org
Affected Products
30 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| Windows 10 Version 1607 for 32-bit Systems | 4489882 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 Version 1607 for x64-based Systems | 4489882 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 Version 1803 for 32-bit Systems | 4489868 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 Version 1803 for ARM64-based Systems | 4489868 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 Version 1803 for x64-based Systems | 4489868 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 Version 1809 for 32-bit Systems | 4489899 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 Version 1809 for ARM64-based Systems | 4489899 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 Version 1809 for x64-based Systems | 4489899 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 7 for 32-bit Systems Service Pack 1 | 4489878 (Monthly Rollup) 4489885 (Security Only) |
Critical | Remote Code Execution | Yes |
| Windows 7 for x64-based Systems Service Pack 1 | 4489878 (Monthly Rollup) 4489885 (Security Only) |
Critical | Remote Code Execution | Yes |
| Windows 8.1 for 32-bit systems | 4489881 (Monthly Rollup) 4489883 (Security Only) |
Critical | Remote Code Execution | Yes |
| Windows 8.1 for x64-based systems | 4489881 (Monthly Rollup) 4489883 (Security Only) |
Critical | Remote Code Execution | Yes |
| Windows RT 8.1 | 4489881 (Monthly Rollup) |
Critical | Remote Code Execution | Yes |
| Windows Server 2008 for 32-bit Systems Service Pack 2 | 4489880 (Monthly Rollup) 4489876 (Security Only) |
Critical | Remote Code Execution | Yes |
| Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) | 4489880 (Monthly Rollup) 4489876 (Security Only) |
Critical | Remote Code Execution | Yes |
| Windows Server 2008 for Itanium-Based Systems Service Pack 2 | 4489880 (Monthly Rollup) 4489876 (Security Only) |
Critical | Remote Code Execution | Yes |
| Windows Server 2008 for x64-based Systems Service Pack 2 | 4489880 (Monthly Rollup) 4489876 (Security Only) |
Critical | Remote Code Execution | Yes |
| Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | 4489880 (Monthly Rollup) 4489876 (Security Only) |
Critical | Remote Code Execution | Yes |
| Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 | 4489878 (Monthly Rollup) 4489885 (Security Only) |
Critical | Remote Code Execution | Yes |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 | 4489878 (Monthly Rollup) 4489885 (Security Only) |
Critical | Remote Code Execution | Yes |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | 4489878 (Monthly Rollup) 4489885 (Security Only) |
Critical | Remote Code Execution | Yes |
| Windows Server 2012 | 4489891 (Monthly Rollup) 4489884 (Security Only) |
Critical | Remote Code Execution | Yes |
| Windows Server 2012 (Server Core installation) | 4489891 (Monthly Rollup) 4489884 (Security Only) |
Critical | Remote Code Execution | Yes |
| Windows Server 2012 R2 | 4489881 (Monthly Rollup) 4489883 (Security Only) |
Critical | Remote Code Execution | Yes |
| Windows Server 2012 R2 (Server Core installation) | 4489881 (Monthly Rollup) 4489883 (Security Only) |
Critical | Remote Code Execution | Yes |
| Windows Server 2016 | 4489882 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows Server 2016 (Server Core installation) | 4489882 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows Server 2019 | 4489899 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows Server 2019 (Server Core installation) | 4489899 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows Server, version 1803 (Server Core Installation) | 4489868 (Security Update) |
Critical | Remote Code Execution | Yes |
Patches
8 patches
| Article | Type | Restart |
|---|---|---|
4489882 |
Security Update | Yes |
4489868 |
Security Update | Yes |
4489899 |
Security Update | Yes |
4489878 (Monthly Rollup) 4489885 |
Monthly Rollup | Yes |
4489881 (Monthly Rollup) 4489883 |
Monthly Rollup | Yes |
4489881 |
Monthly Rollup | Yes |
4489880 (Monthly Rollup) 4489876 |
Monthly Rollup | Yes |
4489891 (Monthly Rollup) 4489884 |
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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