CVE-2024-3741· NVD / CVE Program· CNA icscert

Electrolink FM/DAB/TV Transmitter Authentication Bypass by Assumed-Immutable Data

Noroxi assessment

Priority: Monitor (action score 34/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 0.49% (FIRST EPSS).
Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
According to CISA the attack is automatable: targets can be found by mass scanning.
According to the record, no fixed version is available yet.

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Electrolink transmitters are vulnerable to an authentication bypass vulnerability affecting the login cookie. An attacker can set an arbitrary value except 'NO' to the login cookie and have full system access.

HighCVSS 8.7 · v4.0—No exploit No fix recorded

Published: Apr 18, 2024
Updated: Jun 17, 2026
EPSS: 0.4% · 41th percentile
CWE: CWE-302

Report tools

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Action score

Monitor

Low priority for now.

CVSS: 34 / 40 · 8.7 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.4%

CISA SSVC decision

Exploitation: none
Automatable: yes
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: —
CNA · icscert: 7.5; NVD has not scored this yet; the score shown is the CNA’s.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
No public exploit code on record
No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
electrolink	medium dab transmitter	cpe:2.3:a:electrolink:medium_dab_transmitter
electrolink	uhf tv transmitter	cpe:2.3:a:electrolink:uhf_tv_transmitter
electrolink	high power dab transmitter	cpe:2.3:a:electrolink:high_power_dab_transmitter
electrolink	compact dab transmitter	cpe:2.3:a:electrolink:compact_dab_transmitter
electrolink	compact fm transmitter	cpe:2.3:a:electrolink:compact_fm_transmitter
electrolink	modular fm transmitter	cpe:2.3:a:electrolink:modular_fm_transmitter
electrolink	digital fm transmitter	cpe:2.3:a:electrolink:digital_fm_transmitter
electrolink	vhf tv transmitter	cpe:2.3:a:electrolink:vhf_tv_transmitter

Versions reported by the vendor

Affected version ranges reported by the assigning authority (icscert). Independent of NVD's CPE analysis and usually ahead of it.

Electrolink Compact DAB Transmitter
- 10W, 100W, 250Waffected
Electrolink Compact FM Transmitter
- Compact FM Transmitter, 500W, 1kW, 2kWaffected
Electrolink Digital FM Transmitter
- 15W and later · up to and including 40kWaffected
Electrolink High Power DAB Transmitter
- 2.5kW, 3kW, 4kW, 5kWaffected
Electrolink Medium DAB Transmitter
- 500W, 1kW, 2kWaffected
Electrolink Modular FM Transmitter
- 3kW, 5kW, 10kW, 15kW, 20kW, 30kWaffected
Electrolink UHF TV Transmitter
- 10W and later · up to and including 5kWaffected
Electrolink VHF TV Transmitter
- BI, BIIIaffected

Same product

electrolink: all records

Other highest-scoring records for the same primary product.

CVE-2024-3742Electrolink FM/DAB/TV Transmitter Cleartext Storage of Sensitive Information
34Monitor
CVE-2024-22186Electrolink FM/DAB/TV Transmitter Reliance on Cookies without Validation and Integrity Checking
34Monitor
CVE-2024-21872Electrolink FM/DAB/TV Transmitter Reliance on Cookies without Validation and Integrity Checking
34Monitor

Published before and after this one in the same product

← EarlierCVE-2024-22179Apr 18, 2024 · Electrolink FM/DAB/TV Transmitter Authentication Bypass by Assumed-Immutable Data
34Monitor
Later →CVE-2024-1491Apr 18, 2024 · Electrolink FM/DAB/TV Transmitter Missing Authentication for Critical Function
34Monitor
Later →CVE-2024-21846Apr 18, 2024 · Electrolink FM/DAB/TV Transmitter Missing Authentication for Critical Function
27Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Gjoko Krstic publicly reported these vulnerabilities on the internet after an unsuccessful attempt to contact Electrolink directly.finder

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

CVE-2024-221790 days apartElectrolink FM/DAB/TV Transmitter Authentication Bypass by Assumed-Immutable Data
34Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
No account or password is required.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality
Integrity
Availability

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: X

Weakness class (CWE)

CWE-302 · Authentication Bypass by Assumed-Immutable Data

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

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

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records