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.
| Software | From | Fixed in |
|---|---|---|
| microsoft / windows_10 | 1607 | 1607.x |
| microsoft / windows_10 | 1703 | 1703.x |
| microsoft / windows_10 | 1709 | 1709.x |
| microsoft / windows_10 | 1803 | 1803.x |
| microsoft / windows_server_2016 | 1803 | 1803.x |
| microsoft / windows_10 | 1809 | 1809.x |
| microsoft / windows_server_2016 | 1903 | 1903.x |
| microsoft / windows_10 | 1903 | 1903.x |