Microsoft Windows
CVE-2019-1163 — Windows File Signature Security Feature Bypass Vulnerability
Executive Summary
A security feature bypass exists when Windows incorrectly validates CAB file signatures. An attacker who successfully exploited this vulnerability could inject code into a CAB file without invalidating the file's signature. To exploit the vulnerability, an attacker could modify a signed CAB file and inject malicious code. The attacker could then convince a target user to execute the file. The update addresses the vulnerability by correcting how Windows validates file signatures.
Overview
5.5
CVSS MEDIUM
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
CVSS Vector
ATTACK VECTOR
Local
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
None
USER INTERACTION
Required
SCOPE
Unchanged
Temporal Score: 5.0
EPSS Score
0.01485
probability of exploitation in the next 30 days
0.7064 percentile - updated 2026-06-20
View on FIRST.org
Affected Products
24 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| Windows 10 for 32-bit Systems | 4512497 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows 10 for x64-based Systems | 4512497 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows 10 Version 1607 for 32-bit Systems | 4512517 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows 10 Version 1607 for x64-based Systems | 4512517 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows 10 Version 1703 for 32-bit Systems | 4512507 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows 10 Version 1703 for x64-based Systems | 4512507 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows 10 Version 1709 for 32-bit Systems | 4512516 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows 10 Version 1709 for ARM64-based Systems | 4512516 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows 10 Version 1709 for x64-based Systems | 4512516 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows 10 Version 1803 for 32-bit Systems | 4512501 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows 10 Version 1803 for ARM64-based Systems | 4512501 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows 10 Version 1803 for x64-based Systems | 4512501 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows 10 Version 1809 for 32-bit Systems | 4511553 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows 10 Version 1809 for ARM64-based Systems | 4511553 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows 10 Version 1809 for x64-based Systems | 4511553 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows 10 Version 1903 for 32-bit Systems | 4512508 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows 10 Version 1903 for ARM64-based Systems | 4512508 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows 10 Version 1903 for x64-based Systems | 4512508 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows Server 2016 | 4512517 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows Server 2016 (Server Core installation) | 4512517 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows Server 2019 | 4511553 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows Server 2019 (Server Core installation) | 4511553 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows Server, version 1803 (Server Core Installation) | 4512501 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows Server, version 1903 (Server Core installation) | 4512508 (Security Update) |
Important | Security Feature Bypass | Yes |
Patches
7 patches
| Article | Type | Restart |
|---|---|---|
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 |
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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