CVE-2020-10864Public exploit

System reboot via low-integrity RPC request

Published Apr 1, 2020 · Updated Aug 4, 2024

Denial of service in Avast Antivirus before 20 allows local users to reboot Windows through the aswTask RPC endpoint. The TaskEx library in AvastSvc.exe accepts a reboot RPC request from a Low Integrity process without enforcing the intended trust boundary. Exploitation requires code running in a Low Integrity Windows process, and successful use forces a system reboot without reported data exposure or modification.

CVSS severity6.5
Medium
EPSS probability1.65%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Avast Antivirus before 20 allows local users to reboot Windows through the aswTask RPC endpoint. The TaskEx library in AvastSvc.exe accepts a reboot RPC request from a Low Integrity process without enforcing the intended trust boundary. Exploitation requires code running in a Low Integrity Windows process, and successful use forces a system reboot without reported data exposure or modification.

The record

CVE
CVE-2020-10864
Published
Apr 1, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1529
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Apr 1, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.0NIST NVDAV:N/AC:L/Au:N/C:N/I:N/A:P
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

T1529System Shutdown/Reboot

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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