CVE-2024-39375: Use of Client-Side Authentication in TELSAT marKoni FM Transmitter

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-06-27 · updated 2026-06-17
Weakness: CWE-603

Description

TELSAT marKoni FM Transmitters are vulnerable to an attacker bypassing authentication and gaining administrator privileges.

Affected products

Markoni-D (Compact) Firmware: before 2.0.1 — fixed in 2.0.1
Markoni-Dh (Exciter+Amplifiers) Firmware: before 2.0.1 — fixed in 2.0.1

How to fix

Upgrade to a fixed version: Markoni-D (Compact) Firmware 2.0.1; Markoni-Dh (Exciter+Amplifiers) Firmware 2.0.1. Check the vendor advisory for mitigations.

References

https://www.cisa.gov/news-events/ics-advisories/icsa-24-179-01
https://www.cisa.gov/news-events/ics-advisories/icsa-24-179-01

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