CVE-2021-43326Public exploit

Local privilege escalation via writable temporary scripts

Published Dec 15, 2021 · Updated Aug 4, 2024

Incorrect directory permissions in Automox Agent before 32 on Windows allow local users to execute code with elevated privileges. The agent creates a temporary execDir directory whose permissions let a low-privileged user alter a generated PowerShell script before the privileged service executes it. Exploitation requires local low-privileged access and timing the modification while an agent task is present, resulting in code execution with the service's privileges.

CVSS severity7.8
High
EPSS probability1.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect directory permissions in Automox Agent before 32 on Windows allow local users to execute code with elevated privileges. The agent creates a temporary execDir directory whose permissions let a low-privileged user alter a generated PowerShell script before the privileged service executes it. Exploitation requires local low-privileged access and timing the modification while an agent task is present, resulting in code execution with the service's privileges.

The record

CVE
CVE-2021-43326
Published
Dec 15, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-732, CWE-276, T1059.001
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 15, 2021CVE 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 privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.8AutomoxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.6NIST NVDAV:L/AC:L/Au:N/C:P/I:P/A:P

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-732Incorrect Permission Assignment for Critical Resource
CWE-276Incorrect Default Permissions
T1059.001Command and Scripting Interpreter: PowerShell

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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