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TI-2025-23441 Aliases CVE-2025-32359GHSA-g3qr-3fvc-4fm6

In Zammad 6.4.x before 6.4.2, there is client-side enforcement of server-side security.

Priority LOW 38CWE-602Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

In Zammad 6.4.x before 6.4.2, there is client-side enforcement of server-side security. When changing their two factor authentication configuration, users need to re-authenticate with their current password first. However, this change was enforced in Zammad only on the front end level, and not when using the API directly.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00303 23rd percentileScored 2026-11-07
Fix Fixed Zammad (Zammad): 6.4.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Zammad GmbHZammad6.4 to before 6.4.26.4.2Patch availableCNA
  • Zammad VendorZammad GmbH Affected 6.4 to before 6.4.2 Fixed in 6.4.2 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:zammad:zammad:*:*:*:*:*:*:*:*6.4.0 to before 6.4.2VulnerableZammad GmbH
  • cpe:2.3:a:zammad:zammad:*:*:*:*:*:*:*:* Versions 6.4.0 to before 6.4.2 Vulnerable ·Zammad GmbH

Remediation

  • Fix · CNA Zammad (Zammad) Fixed in 6.4.2

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Zammad 6.4.2

    4 records Highest priority Priority LOW 4 LOW

    Other records, highest priority first

    • TI-2025-23442 In Zammad 6.4.x before 6.4.2, there is information exposure.Priority LOW 35
    • TI-2025-23439 Authentication bypass in ZammadPriority LOW 20
    • TI-2025-23440 Server-side request forgery in ZammadPriority LOW 19
    Show all 4 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-32359
  2. 2026-10-03 Alias added: GHSA-g3qr-3fvc-4fm6

References

Advisory 1

  • TI-2026-65406 Local privilege escalation in Zammad v1.5.0 to v7.2.2 installed via DEB or RPM package KEVCVSS 4.0CRITICAL 9.4
  • TI-2026-65405 Undisclosed RCE in Zammad v6.3 and higher KEVCVSS 4.0CRITICAL 9.4
  • TI-2024-22252 An issue was discovered in Zammad before 6.3.0. CVSS 3.1CRITICAL 9.1
  • TI-2022-23785 A vulnerability in Zammad v5.3.0 allows attackers to execute arbitrary code or escalate… CVSS 3.1CRITICAL 9.8
  • TI-2021-18599 An issue was discovered in Zammad before 4.1.1. CVSS 3.1CRITICAL 9.8
  • TI-2021-18603 An issue was discovered in Zammad before 4.1.1. CVSS 3.1CRITICAL 9.8
See all 91 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences