# CVE-2023-53776: Screen SFT DAB 1.9.3 Authentication Bypass via Session Management Weakness

> Attackers can bypass authentication on Screen SFT DAB transmitters by reusing IP-bound session IDs to perform unauthorized management operations.

- **Severity:** High 8.7 (`CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/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:** Not needed
- **Fix available:** No
- **Published:** 10 Dec 2025
- **Updated:** 7 Apr 2026
- **Also known as:** GHSA-q2hc-2xvc-9p5c

## What is CVE-2023-53776?

CVE-2023-53776 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, with no action from the victim.

### Official description

Screen SFT DAB 1.9.3 contains an authentication bypass vulnerability that allows attackers to exploit weak session management by reusing IP-bound session identifiers. Attackers can issue unauthorized requests to the device management API by leveraging the session binding mechanism to perform critical operations on the transmitter.

Weakness: CWE-384 (Session Fixation)

## Which versions are affected by CVE-2023-53776?

It affects 1 product.


Products: Dbbroadcast Sft Dab 600\/C Firmware.

## How do I fix CVE-2023-53776?

No fix has been published for CVE-2023-53776 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-53776 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-53776 exists.

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

- [CVE-2023-53967](https://insights.sbomify.com/CVE-2023-53967/): Screen SFT DAB 600/C Firmware 1.9.3 Authentication Bypass Admin Password Change (critical 9.3)
- [CVE-2023-53968](https://insights.sbomify.com/CVE-2023-53968/): Screen SFT DAB 600/C Firmware 1.9.3 Authentication Bypass Erase Account (critical 9.3)
- [CVE-2023-53969](https://insights.sbomify.com/CVE-2023-53969/): Screen SFT DAB 600/C Firmware 1.9.3 Authentication Bypass Password Change (critical 9.3)
- [CVE-2023-53970](https://insights.sbomify.com/CVE-2023-53970/): Screen SFT DAB 600/C Firmware 1.9.3 Authentication Bypass Reset Board Config (high 8.7)
- [CVE-2023-53775](https://insights.sbomify.com/CVE-2023-53775/): Screen SFT DAB 1.9.3 Authentication Bypass via Session Management Weakness (high 7.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-53776 and fix it if it is affected.

What it is: CVE-2023-53776 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, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-53776 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-2023-53776/ (Markdown: https://insights.sbomify.com/CVE-2023-53776/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-53776
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-53776
- OSV: https://osv.dev/vulnerability/CVE-2023-53776

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From sbomify Insights: https://insights.sbomify.com/CVE-2023-53776/
Summaries are generated and may contain mistakes; the official description above is the record.