A vulnerability of authentication bypass has been found on a Zebra Technologies ZTC ZT410-203dpi ZPL printer. This vulnerability allows an attacker that is in the same network as the printer, to change the username and password for the Web Page by sending a specially crafted POST request to the setvarsResults.cgi file. For this vulnerability to be exploitable, the printers protected mode must be disabled.
Fixes

Solution

Zebra Printers running Link-OS v6.0 and later have a protected mode that protects the printer from this vulnerability. Activating this mode disables unauthorized changes and locks the current configuration until an administrator authorizes updates. By default, the secure mode is disabled as it is necessary to generate a password first. NOTE: the ZT410 industrial printer was discontinued on Oct 1st, 2020. The service and Support discontinuation dates are in September and December 2025 depending on region. Further information regarding security settings and best practices, including “Protected Mode”, can be found in the references. UPDATE: The vulnerability has been fixed by Zebra. The updated firmware version is Link-OS v7.3 which was released March 2025. The currently released version is Link-OS v7.4 which includes the fix that was released in the previous version.


Workaround

No workaround given by the vendor.

History

Thu, 28 Aug 2025 08:15:00 +0000

Type Values Removed Values Added
Description A vulnerability of authentication bypass has been found on a Zebra Technologies ZTC ZT410-203dpi ZPL printer. This vulnerability allows an attacker that is in the same network as the printer, to change the username and password for the Web Page by sending a specially crafted POST request to the setvarsResults.cgi file. For this vulnerability to be exploitable, the printers protected mode must be disabled. A vulnerability of authentication bypass has been found on a Zebra Technologies ZTC ZT410-203dpi ZPL printer. This vulnerability allows an attacker that is in the same network as the printer, to change the username and password for the Web Page by sending a specially crafted POST request to the setvarsResults.cgi file. For this vulnerability to be exploitable, the printers protected mode must be disabled.
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: INCIBE

Published:

Updated: 2025-08-28T07:56:23.568Z

Reserved: 2023-09-14T07:08:37.883Z

Link: CVE-2023-4957

cve-icon Vulnrichment

Updated: 2024-08-02T07:44:53.296Z

cve-icon NVD

Status : Modified

Published: 2023-10-11T14:15:10.047

Modified: 2025-08-28T08:15:29.560

Link: CVE-2023-4957

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.