CVE-2024-21846Network attack vector

Broadcast interruption via unauthenticated board reset

Published Apr 18, 2024 · Updated Aug 1, 2024

Missing authentication in command.cgi on Electrolink FM, DAB, and TV transmitters allows remote attackers to stop transmission. The gateway accepts a crafted GET request without authenticating the caller and invokes a board reset. Network access to the management gateway is sufficient; the resulting reset interrupts broadcast operations.

CVSS severity6.9

Medium

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

The record

CVE: CVE-2024-21846
Published: Apr 18, 2024
Updated: Aug 1, 2024

Vendor: Electrolink
Product: Digital FM Transmitter
Classifications: CWE-306, T0814

Attack vector: network
Privileges: unauthenticated

Timeline

How it unfolded

Apr 18, 2024CVE publishedPublication date reported by the CVE source.
Aug 1, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

Affected versionversion=15w <=40kw
Affected versionversion=15W <=40kW

What conditions does exploitation require?

Attack vectornetwork

Required privilegesunauthenticated

What is affected?

Electrolink · Digital FM Transmitterversion=15w <=40kw; version=15W <=40kW

Electrolink · Medium DAB Transmitterversion=1kw; version=1kW; version=2kw; version=2kW; version=500w; version=500W

Electrolink · Compact FM Transmitterversion=1kw; version=1kW; version=2kw; version=2kW; version=500w; version=500W; version=Compact FM Transmitter

Electrolink · Modular FM Transmitterversion=10kw; version=10kW; version=15kw; version=15kW; version=20kw; version=20kW; version=30kw; version=30kW; version=3kw; version=3kW; version=5kw; version=5kW

Electrolink · High Power DAB Transmitterversion=2.5kw; version=2.5kW; version=3kw; version=3kW; version=4kw; version=4kW; version=5kw; version=5kW

Electrolink · UHF TV Transmitterversion=10w <=5kw; version=10W <=5kW

Electrolink · Compact DAB Transmitterversion=100w; version=100W; version=10w; version=10W; version=250w; version=250W

Electrolink · VHF TV Transmitterversion=bi; version=BI; version=biii; version=BIII

Published CVSS scores

5.3ICS-CERTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

6.9ICS-CERTCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/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 9, 2026Sep 15, 2026

Latest reporting daySep 15, 2026

Latest daily unique IPsUnavailable

Prior 30-day averageUnavailable

SourceShadowserver honeypots (KEV)

Vectornetwork

Privilegesunauthenticated

Known exploitationUnconfirmed

Public exploitUnconfirmed

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function

T0814Denial of Service

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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