What’s Vulnerable › Vulnerabilities

CVE-2020-10863

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-04-01 · updated 2026-06-17

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 trigger a shutdown via RPC from a Low Integrity process via TempShutDownMachine.

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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