CVE-2019-1170 EXPLOIT
7.9
HIGH · CVSS 3.1 · EPSS 2.4% (pctl 84)
Patch early
A public exploit exists.
Description
An elevation of privilege vulnerability exists when reparse points are created by sandboxed processes allowing sandbox escape. An attacker who successfully exploited the vulnerability could use the sandbox escape to elevate privileges on an affected system. To exploit the vulnerability, an attacker would first have to log on to the system, and then run a specially crafted application to take control over the affected system. The security update addresses the vulnerability by preventing sandboxed processes from creating reparse points targeting inaccessible files.
Scoring
| CVSS | 7.9 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L |
| EPSS | 2.43% — more likely to be exploited than 84% of all CVEs |
| Weakness | CWE-862 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2019-08-14 |
| Last modified | 2026-06-17 |
Affected (3)
| Vendor | Product |
|---|---|
| microsoft | windows 10 |
| microsoft | windows server 2016 |
| microsoft | windows server 2019 |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Microsoft Windows 10 - SET_REPARSE_POINT_EX Mount Point Security Feature Bypass | 2019-08-26 |
References
- http://packetstormsecurity.com/files/154192/Microsoft-Windows-SET_REPARSE_POINT_EX-Mount-Point-Security-Feature-Bypass.html
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1170
- http://packetstormsecurity.com/files/154192/Microsoft-Windows-SET_REPARSE_POINT_EX-Mount-Point-Security-Feature-Bypass.html
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1170
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