CVE-2024-39376Network attack vector

Unauthenticated access to restricted transmitter functions

Published Jun 27, 2024 · Updated Aug 2, 2024

Improper access control in TELSAT marKoni FM transmitter firmware before 2.0.1 allows remote attackers to access restricted functions. CISA and marKoni have not published the affected endpoint or the authorization check that fails to constrain access. No authentication or user interaction is required, and exposed Web or SNMP management permits sensitive-data access or unauthorized transmitter actions.

CVSS severity9.3
Critical
EPSS probability0.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in TELSAT marKoni FM transmitter firmware before 2.0.1 allows remote attackers to access restricted functions. CISA and marKoni have not published the affected endpoint or the authorization check that fails to constrain access. No authentication or user interaction is required, and exposed Web or SNMP management permits sensitive-data access or unauthorized transmitter actions.

The record

CVE
CVE-2024-39376
Published
Jun 27, 2024
Updated
Aug 2, 2024
Vendor
marKoni
Product
Markoni-DH (Exciter + Amplifiers) FM Transmitters
Classifications
CWE-284, T0819
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 27, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2.0.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

marKoni · Markoni-DH (Exciter + Amplifiers) FM Transmittersversion=0 <2.0.1
Telsat · marKoni-DH (Exciter + Amplifiers) FM Transmittersversion=0 <2.0.1
Telsat · marKoni-D (Compact) FM Transmittersversion=0 <2.0.1
marKoni · Markoni-D (Compact) FM Transmittersversion=0 <2.0.1

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.3ICS-CERTCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control
T0819Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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