CVE-2019-11230

Name: CVE-2019-11230
Creator: NVD / NIST
Published: 2019-07-18T17:15:11.88+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.54%

Last modified Jun 17, 2026

CVE-2019-11230 is a vulnerability of currently unknown severity. 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. EPSS estimates a 0.54% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

0.54%

41.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-59

Affected Software

Vendor	Product	Versions
Avast	Antivirus	< 19.4

References

http://www.mcerlane.co.uk/CVE-2019-11230/Exploit, Third Party Advisory
http://www.securityfocus.com/bid/109344Third Party Advisory
http://www.mcerlane.co.uk/CVE-2019-11230/Exploit, Third Party Advisory
http://www.securityfocus.com/bid/109344Third Party Advisory

Timeline

Published: Jul 18, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-11230?

How severe is CVE-2019-11230?

Severity scoring for CVE-2019-11230 is pending analysis. The EPSS model estimates a 0.54% probability of exploitation in the next 30 days.

How do I fix CVE-2019-11230?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-11230?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST