CVEvulnerability
CVE-2019-17093
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2019-10-23
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 4.4 MEDIUM — AV:L/AC:M/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-427
Description
An issue was discovered in Avast antivirus before 19.8 and AVG antivirus before 19.8. A DLL Preloading vulnerability allows an attacker to implant %WINDIR%\system32\wbemcomn.dll, which is loaded into a protected-light process (PPL) and might bypass some of the self-defense mechanisms. This affects all components that use WMI, e.g., AVGSvc.exe 19.6.4546.0 and TuneupSmartScan.dll 19.1.884.0.
Affected configurations
• avast antivirus (< 19.8)
• avg anti-virus (< 19.8)
Related
Weakness · CWE (1)
- CWE-427 Uncontrolled Search Path Element weakness
References
- https://safebreach.com/Post/Avast-Antivirus-AVG-Antivirus-DLL-Preloading-into-PPL-and-Potential-Abuses Exploit, Technical Description, Third Party Advisory
- https://safebreach.com/blog Third Party Advisory
- https://safebreach.com/Post/Avast-Antivirus-AVG-Antivirus-DLL-Preloading-into-PPL-and-Potential-Abuses Exploit, Technical Description, Third Party Advisory
- https://safebreach.com/blog Third Party Advisory