What’s Vulnerable › Vulnerabilities

CVE-2020-10867

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-04-01 · updated 2026-06-17
• Weakness: CWE-668

Description

An issue was discovered in Avast Antivirus before 20. The aswTask RPC endpoint for the TaskEx library in the Avast Service (AvastSvc.exe) allows attackers to bypass intended access restrictions on tasks from an untrusted process, when Self Defense is enabled.

Affected products

• Avast Antivirus: before 20.0 — fixed in 20.0

How to fix

Upgrade to a fixed version: Avast Antivirus 20.0. Check the vendor advisory for mitigations.

References

• https://forum.avast.com/index.php?topic=232420.0
• https://forum.avast.com/index.php?topic=232423.0
• https://github.com/umarfarook882/Avast_Multiple_Vulnerability_Disclosure/blob/master/README.md
• https://forum.avast.com/index.php?topic=232420.0
• https://forum.avast.com/index.php?topic=232423.0
• https://github.com/umarfarook882/Avast_Multiple_Vulnerability_Disclosure/blob/master/README.md

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