Insecure DLL loading in Microsoft Visual Studio
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2019-0809 |
| CWE-ID | CWE-427 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software Subscribe |
Visual Studio Universal components / Libraries / Software for developers |
| Vendor | Microsoft |
Security Bulletin
This security bulletin contains one high risk vulnerability.
1) Insecure DLL loading
EUVDB-ID: #VU17980
Risk: High
CVSSv3.1: 8.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2019-0809
CWE-ID:
CWE-427 - Uncontrolled Search Path Element
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to the application loads DLL libraries in an insecure manner in Visual Studio C++ Redistributable Installer. A remote attacker can place a specially crafted .dll file on a remote SMB fileshare, trick the victim into opening a file, associated with the vulnerable application, and execute arbitrary code on victim's system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsVisual Studio: 15.9
External linkshttp://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0809
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
