{"id":"CVE-2019-17093","aliases":["EUVD-2019-7560","GHSA-r8m5-8wc4-vhp3"],"status":"published","title":"An issue was discovered in Avast antivirus before 19.8 and AVG antivirus before 19.8. A DLL...","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.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00553,"percentile":0.46467,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-426","CWE-427"],"published":"2019-10-23T16:59:08Z","modified":"2026-06-17T02:23:17Z","products":[{"vendor":"avast","product":"antivirus"},{"vendor":"avg","product":"anti-virus"}],"references":[{"url":"https://safebreach.com/blog","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://safebreach.com/Post/Avast-Antivirus-AVG-Antivirus-DLL-Preloading-into-PPL-and-Potential-Abuses","tags":["x_refsource_MISC","x_transferred","Exploit","Technical Description","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-17093"},{"url":"https://github.com/advisories/GHSA-r8m5-8wc4-vhp3"}],"sources":{"cve":[{"id":"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.","status":"published","published":"2019-10-23T16:59:08Z","modified":"2024-08-05T01:33:16.465Z","updated_at":"2026-11-02T14:20:24.678649Z"}],"euvd":[{"id":"EUVD-2019-7560","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.","status":"published","published":"2019-10-23T16:59:08Z","modified":"2024-08-05T01:33:16Z","updated_at":"2026-11-03T02:40:31.468839Z"}],"ghsa":[{"id":"GHSA-r8m5-8wc4-vhp3","title":"An issue was discovered in Avast antivirus before 19.8 and AVG antivirus before 19.8. A DLL...","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.","status":"published","published":"2022-05-24T16:59:44Z","modified":"2023-01-28T05:07:31Z","cwes":["CWE-426"],"updated_at":"2026-11-02T14:44:32.070856Z"}],"nvd":[{"id":"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.","status":"published","published":"2019-10-23T17:15:12.85Z","modified":"2026-06-17T02:23:17.623Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":4.4,"vector":"AV:L/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-427"],"updated_at":"2026-11-02T14:05:32.982925Z"}]}}