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Vulnerability Details : CVE-2019-11230

In Avast Antivirus before 19.4, a local administrator can trick the product into renaming arbitrary files by replacing the Logs\Update.log file with a symlink. The next time the product attempts to write to the log file, the target of the symlink is renamed. This defect can be exploited to rename a critical product file (e.g., AvastSvc.exe), causing the product to fail to start on the next system restart.
Publish Date : 2019-07-18 Last Update Date : 2019-07-24
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)

- Products Affected By CVE-2019-11230

# Product Type Vendor Product Version Update Edition Language
1 Application Avast Antivirus 8.0.1489 Version Details Vulnerabilities
2 Application Avast Antivirus 8.0.1497 Version Details Vulnerabilities
3 Application Avast Antivirus 8.0.1500 Version Details Vulnerabilities
4 Application Avast Antivirus 8.0.1501 Version Details Vulnerabilities
5 Application Avast Antivirus 8.0.1504 Version Details Vulnerabilities
6 Application Avast Antivirus 8.0.1506 Version Details Vulnerabilities
7 Application Avast Antivirus 12.1.2272 Version Details Vulnerabilities
8 Application Avast Antivirus 12.2.2276 Version Details Vulnerabilities
9 Application Avast Antivirus 12.3.2279 Version Details Vulnerabilities
10 Application Avast Antivirus 17.1.2286 Version Details Vulnerabilities
11 Application Avast Antivirus 17.2.2288 Version Details Vulnerabilities
12 Application Avast Antivirus 17.3.2290 Version Details Vulnerabilities
13 Application Avast Antivirus 17.3.2291 Version Details Vulnerabilities
14 Application Avast Antivirus 17.4.2294 Version Details Vulnerabilities
15 Application Avast Antivirus 17.5.2302 Version Details Vulnerabilities
16 Application Avast Antivirus 17.6.2310 Version Details Vulnerabilities
17 Application Avast Antivirus 17.7.2314 Version Details Vulnerabilities
18 Application Avast Antivirus 17.8.2318 Version Details Vulnerabilities
19 Application Avast Antivirus 17.9.2322 Version Details Vulnerabilities
20 Application Avast Antivirus 18.1.2326 Version Details Vulnerabilities
21 Application Avast Antivirus 18.2.2328 Version Details Vulnerabilities
22 Application Avast Antivirus 18.3.2333 Version Details Vulnerabilities
23 Application Avast Antivirus 18.4.2338 Version Details Vulnerabilities
24 Application Avast Antivirus 18.5.2342 Version Details Vulnerabilities
25 Application Avast Antivirus 18.6.2349 Version Details Vulnerabilities
26 Application Avast Antivirus 18.7.2354 Version Details Vulnerabilities
27 Application Avast Antivirus 18.8.2356 Version Details Vulnerabilities
28 Application Avast Antivirus 19.1 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Avast Antivirus 28

- References For CVE-2019-11230
BID 109344 Avast! Antivirus CVE-2019-11230 Local Denial of Service Vulnerability Release Date:2019-07-18

- Metasploit Modules Related To CVE-2019-11230

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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