CVE-2023-26039Network attack vector

Authenticated shell command execution via daemonControl parameters

Published Feb 25, 2023 · Updated Mar 10, 2025

OS command injection in ZoneMinder before 1.36.33 and 1.37.0 through 1.37.32 allows remote authenticated users to execute shell commands. HostController.php's daemonControl() concatenates attacker-controlled command and daemon route parameters into a zmdc.pl command string passed to PHP exec without neutralizing shell metacharacters. Any authenticated account can reach the API, and successful exploitation runs arbitrary commands with the web-service user's privileges.

CVSS severity7.1
High
EPSS probability1.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in ZoneMinder before 1.36.33 and 1.37.0 through 1.37.32 allows remote authenticated users to execute shell commands. HostController.php's daemonControl() concatenates attacker-controlled command and daemon route parameters into a zmdc.pl command string passed to PHP exec without neutralizing shell metacharacters. Any authenticated account can reach the API, and successful exploitation runs arbitrary commands with the web-service user's privileges.

The record

CVE
CVE-2023-26039
Published
Feb 25, 2023
Updated
Mar 10, 2025
Vendor
ZoneMinder
Product
ZoneMinder
Classifications
CWE-78, T1059.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 25, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 10, 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=< 1.36.33
  2. Affected versionversion=>= 1.37.0, < 1.37.33

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ZoneMinder · ZoneMinderversion=< 1.36.33; version=>= 1.37.0, < 1.37.33

Published CVSS scores

7.1GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
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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