Overview
- 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.
- Source
- cve@mitre.org
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 7.8
- Impact score
- 5.9
- Exploitability score
- 1.8
- Vector string
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Severity
- HIGH
CVSS 2.0
- Type
- Primary
- Base score
- 4.4
- Impact score
- 6.4
- Exploitability score
- 3.4
- Vector string
- AV:L/AC:M/Au:N/C:P/I:P/A:P
Weaknesses
- nvd@nist.gov
- CWE-427
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:avast:antivirus:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "49F47FA8-32A2-415C-9E44-C9442E2A6151",
"versionEndExcluding": "19.8"
},
{
"criteria": "cpe:2.3:a:avg:anti-virus:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "3CA072C3-5309-4CC3-B8B0-5CE78F914BE4",
"versionEndExcluding": "19.8"
}
],
"operator": "OR"
}
]
}
]