Medium severity4.4NVD Advisory· Published Jul 18, 2019· Updated Jun 17, 2026
CVE-2019-11230
CVE-2019-11230
Description
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.
Affected products
3- Avast/Antivirusdescription
Patches
Vulnerability mechanics
References
2- www.mcerlane.co.uk/CVE-2019-11230/nvdExploitThird Party Advisory
- www.securityfocus.com/bid/109344nvdThird Party Advisory
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