CVE-2020-10866

Name: CVE-2020-10866
Creator: NVD / NIST
Published: 2020-04-01T18:15:14.6+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.17%

Last modified Jun 17, 2026

CVE-2020-10866 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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 enumerate the network interfaces and access points from a Low Integrity process via RPC.. EPSS estimates a 1.17% chance of exploitation in the next 30 days.

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 enumerate the network interfaces and access points from a Low Integrity process via RPC.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

1.17%

63.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-326

Affected Software

Vendor	Product	Versions
Avast	Antivirus	< 20.0

References

https://forum.avast.com/index.php?topic=232420.0Release Notes, Vendor Advisory
https://forum.avast.com/index.php?topic=232423.0Release Notes, Vendor Advisory
https://github.com/umarfarook882/Avast_Multiple_Vulnerability_Disclosure/blob/master/README.mdExploit, Third Party Advisory
https://forum.avast.com/index.php?topic=232420.0Release Notes, Vendor Advisory
https://forum.avast.com/index.php?topic=232423.0Release Notes, Vendor Advisory
https://github.com/umarfarook882/Avast_Multiple_Vulnerability_Disclosure/blob/master/README.mdExploit, Third Party Advisory

Timeline

Published: Apr 1, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-10866?

How severe is CVE-2020-10866?

CVE-2020-10866 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.17% probability of exploitation in the next 30 days.

How do I fix CVE-2020-10866?

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-2020-10866?

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

Scan your code now

Source: NVD / NIST