CVE-2021-46088Public exploitNetwork attack vector

Authenticated code execution via custom action scripts

Published Jan 27, 2022 · Updated Aug 4, 2024

Remote code execution in Zabbix 4.0 LTS, 4.2, 4.4, and 5.0 LTS allows remote authenticated users to execute code on the server. The Actions interface lets the Zabbix Admin role create an action containing a custom script, which the application server executes as its service account. A Zabbix Admin session is required, and commands run with the application account's access to the host and database.

CVSS severity7.2
High
EPSS probability3.93%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Remote code execution in Zabbix 4.0 LTS, 4.2, 4.4, and 5.0 LTS allows remote authenticated users to execute code on the server. The Actions interface lets the Zabbix Admin role create an action containing a custom script, which the application server executes as its service account. A Zabbix Admin session is required, and commands run with the application account's access to the host and database.

The record

CVE
CVE-2021-46088
Published
Jan 27, 2022
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1059.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 27, 2022CVE 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 vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.2NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
6.5NIST NVDAV:N/AC:L/Au:S/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

T1059.004Unix Shell

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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