CVE-2023-26035Public exploitNetwork attack vector

Unauthenticated code execution via unsanitized monitor ID

Published Feb 25, 2023 · Updated Feb 13, 2025

Command injection in ZoneMinder before 1.36.33 and 1.37.0 through 1.37.32 allows remote attackers to execute arbitrary OS commands. The unauthenticated snapshot action accepts attacker-controlled monitor_ids, constructs a Monitor object, and passes its Id into TriggerOn, which invokes shell_exec. No account or user interaction is required; successful exploitation executes commands in the ZoneMinder server process context without an availability impact reported by the vendor.

CVSS severity10.0
Critical
EPSS probability80.46%
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 ZoneMinder before 1.36.33 and 1.37.0 through 1.37.32 allows remote attackers to execute arbitrary OS commands. The unauthenticated snapshot action accepts attacker-controlled monitor_ids, constructs a Monitor object, and passes its Id into TriggerOn, which invokes shell_exec. No account or user interaction is required; successful exploitation executes commands in the ZoneMinder server process context without an availability impact reported by the vendor.

The record

CVE
CVE-2023-26035
Published
Feb 25, 2023
Updated
Feb 13, 2025
Vendor
ZoneMinder
Product
ZoneMinder
Classifications
CWE-862, T1059.004, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 25, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 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 privilegesunauthenticated

What is affected?

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

Published CVSS scores

10.0GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-862Missing Authorization
T1059.004Unix Shell
T1190Exploit Public-Facing Application

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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