CVE-2022-46303

Arbitrary command execution via unescaped Pager Address

Published Feb 20, 2023 · Updated Mar 12, 2025

Command injection in Checkmk SMS notifications allows remote authenticated users to execute shell commands in the site's security context. The SMS script passes the Pager Address through os.system without proper escaping, so shell metacharacters in a crafted address become commands. Exploitation requires User Management permission or an external source such as LDAP synchronization that can set the Pager Address, and commands run with the site's local permissions.

CVSS severity8.0
High
EPSS probability1.10%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in Checkmk SMS notifications allows remote authenticated users to execute shell commands in the site's security context. The SMS script passes the Pager Address through os.system without proper escaping, so shell metacharacters in a crafted address become commands. Exploitation requires User Management permission or an external source such as LDAP synchronization that can set the Pager Address, and commands run with the site's local permissions.

The record

CVE
CVE-2022-46303
Published
Feb 20, 2023
Updated
Mar 12, 2025
Vendor
Checkmk GmbH
Product
Checkmk
Classifications
CWE-78, CWE-20, T1059.004
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 20, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 12, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.6.0 <=1.6.0p29
  2. Affected versionversion=2.0.0 <=2.0.0p27
  3. Affected versionversion=2.1.0 <=2.1.0p10

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

Checkmk GmbH · Checkmkversion=1.6.0 <=1.6.0p29; version=2.0.0 <=2.0.0p27; version=2.1.0 <=2.1.0p10

Published CVSS scores

8.0Checkmk GmbHCVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
7.5NIST NVDCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/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)
Vectoradjacent
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CWE-20Improper Input Validation
T1059.004Unix Shell

Public exploit references

No public exploit references are available in this record.

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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