Authentication Bypass on Zebra ZTC

published 2023-10-11 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-54793

cvss: 5.4; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 22%
public exploits: 0; none known

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.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-23-339-01 updated 2023-12-05 cvss 5.4

Zebra ZTC Industrial ZT400 and ZTC Desktop GK420d

Zebra Technologies ZTC Desktop GK420d Zebra Technologies ZTC Industrial ZT410
affected: mitigation “For more information about the protected mode and to apply it to Zebra printer products that may be affected, see the Link-OS Printer Administration Guide.” zebra.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 2 y ago (2024-09-05)

Exploit prediction

0.30% chance of exploitation in the next 30 days, higher than 22% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.4	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
NVD	3.1	4.3	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected products

Zebra Technologies ZTC ZT410

Classification

Weakness

CWE-288 Authentication Bypass Using an Alternate Path or Channel

References

incibe.es /en/incibe-cert/notices/aviso-sci/authentication-bypass-zebra-ztc
third-party-advisory

Sources

CVE List CVE-2023-4957
NVD CVE-2023-4957

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Summary