High severity7.8NVD Advisory· Published Oct 23, 2019· Updated Jun 17, 2026
CVE-2019-17093
CVE-2019-17093
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.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
5cpe:2.3:a:avg:anti-virus:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:avg:anti-virus:*:*:*:*:*:*:*:*range: <19.8
- (no CPE)range: <19.8
- Avast/antivirusdescription
- Range: <19.8
Patches
Vulnerability mechanics
References
2- safebreach.com/Post/Avast-Antivirus-AVG-Antivirus-DLL-Preloading-into-PPL-and-Potential-AbusesnvdExploitTechnical DescriptionThird Party Advisory
- safebreach.com/blognvdThird Party Advisory
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