CVE-2024-36078

Local code execution via world-writable gem files

Published May 19, 2024 · Updated Feb 13, 2025

Code injection in Zammad before 6.3.1 allows local users to execute arbitrary code through a bundled Ruby gem. The package installation leaves the gem files world-writable, so a local account can replace gem code that Zammad later loads into its processes. Execution requires local server access and occurs with the environment and permissions of the Zammad service account, bounding the consequence to that account.

CVSS severity6.7
Medium
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in Zammad before 6.3.1 allows local users to execute arbitrary code through a bundled Ruby gem. The package installation leaves the gem files world-writable, so a local account can replace gem code that Zammad later loads into its processes. Execution requires local server access and occurs with the environment and permissions of the Zammad service account, bounding the consequence to that account.

The record

CVE
CVE-2024-36078
Published
May 19, 2024
Updated
Feb 13, 2025
Vendor
Zammad
Product
Zammad
Classifications
CWE-94, T1574.010
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 19, 2024CVE 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=0 <6.3.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Zammad · Zammadversion=0 <6.3.1

Published CVSS scores

6.7CISA-ADPCVSS:3.1/AV:L/AC:L/PR:H/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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1574.010Services File Permissions Weakness

Public exploit references

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Technologies

Your stack

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Your stack

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