# CVE-2023-53740: Screen SFT DAB 1.9.3 Authentication Bypass via Admin Password Change

> Attackers can bypass authentication to change the admin password on Screen SFT DAB transmitters, gaining full administrative control.

- **Severity:** High 8.6 (`CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 10 Dec 2025
- **Updated:** 7 Apr 2026
- **Also known as:** GHSA-xxv3-3qj7-23pv

## What is CVE-2023-53740?

CVE-2023-53740 is a high-severity authentication bypass vulnerability in DB Elettronica Telecomunicazioni SpA Screen SFT DAB Series - Compact Radio DAB Transmitter, published on 10 Dec 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

Screen SFT DAB 1.9.3 contains an authentication bypass vulnerability that allows attackers to change the admin password without providing the current credentials. Attackers can exploit the userManager.cgx endpoint by sending a crafted JSON request with a new MD5-hashed password to directly modify the admin account.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2023-53740?

It affects 5 products.


Products: Dbbroadcast Sft Dab 015\/C Firmware, Dbbroadcast Sft Dab 050\/C Firmware, Dbbroadcast Sft Dab 150\/C Firmware, Dbbroadcast Sft Dab 300\/C Firmware, Dbbroadcast Sft Dab 600\/C Firmware.

## How do I fix CVE-2023-53740?

No fix has been published for CVE-2023-53740 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-53740 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-53740 exists.

## Other vulnerabilities in DB Elettronica Telecomunicazioni SpA Screen SFT DAB Series - Compact Radio DAB Transmitter

- [CVE-2023-53741](https://insights.sbomify.com/CVE-2023-53741/): Screen SFT DAB 1.9.3 Authentication Bypass via IP Session Management (medium 5.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-53740 and fix it if it is affected.

What it is: CVE-2023-53740 is a high-severity authentication bypass vulnerability in DB Elettronica Telecomunicazioni SpA Screen SFT DAB Series - Compact Radio DAB Transmitter, published on 10 Dec 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-53740 exists.

Affected product: DB Elettronica Telecomunicazioni SpA Screen SFT DAB Series - Compact Radio DAB Transmitter. 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-2023-53740/ (Markdown: https://insights.sbomify.com/CVE-2023-53740/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-53740
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-53740
- OSV: https://osv.dev/vulnerability/CVE-2023-53740

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From sbomify Insights: https://insights.sbomify.com/CVE-2023-53740/
Summaries are generated and may contain mistakes; the official description above is the record.