CVE-2020-13657
Last modified
CVE-2020-13657 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. An elevation of privilege vulnerability exists in Avast Free Antivirus and AVG AntiVirus Free before 20.4 due to improperly handling hard links. The vulnerability allows local users to take control of arbitrary files.. EPSS estimates a 0.40% chance of exploitation in the next 30 days.
Description
An elevation of privilege vulnerability exists in Avast Free Antivirus and AVG AntiVirus Free before 20.4 due to improperly handling hard links. The vulnerability allows local users to take control of arbitrary files.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Avast | Avg Antivirus | < 20.4 |
| Avast | Free Antivirus | < 20.4 |
References
- https://forum.avast.com/index.php?topic=232423.0Release Notes, Vendor Advisory
- https://forum.avast.com/index.php?topic=234638.0Vendor Advisory
- https://forum.avast.com/index.php?topic=232423.0Release Notes, Vendor Advisory
- https://forum.avast.com/index.php?topic=234638.0Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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