# CVE-2023-4957: Authentication Bypass on Zebra ZTC

> An attacker on the same network can bypass authentication to change admin credentials if protected mode is disabled.

- **Severity:** Medium 5.4 (`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 11 Oct 2023
- **Updated:** 28 Aug 2025
- **Also known as:** GHSA-cxgm-7qvp-hg2x

## What is CVE-2023-4957?

CVE-2023-4957 is a medium-severity authentication bypass vulnerability in Zebra Technologies ZTC ZT410, published on 11 Oct 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official 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.

Weakness: CWE-288 (Authentication Bypass Using an Alternate Path or Channel)

## Which versions are affected by CVE-2023-4957?

It affects 1 product.


Products: Zebra Zt410 Firmware.

## How do I fix CVE-2023-4957?

No fix has been published for CVE-2023-4957 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-4957 being exploited?

There is no known exploitation of CVE-2023-4957 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-4957 and fix it if it is affected.

What it is: CVE-2023-4957 is a medium-severity authentication bypass vulnerability in Zebra Technologies ZTC ZT410, published on 11 Oct 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-4957 in the wild and no public exploit code.

Affected product: Zebra Technologies ZTC ZT410. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2023-4957/ (Markdown: https://insights.sbomify.com/CVE-2023-4957/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-4957
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-4957
- OSV: https://osv.dev/vulnerability/CVE-2023-4957

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From sbomify Insights: https://insights.sbomify.com/CVE-2023-4957/
Summaries are generated and may contain mistakes; the official description above is the record.