How severe is CVE-2023-6221?

CVE-2023-6221 has a CVSS 3.x base score of 7.7, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-6221 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-6221?

CVE-2023-6221 affects Machinesense Feverwarn Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-6221?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2023-6221 have an EU (EUVD) identifier?

Yes. CVE-2023-6221 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-58468.

When was CVE-2023-6221 published?

CVE-2023-6221 was published on 2024-02-01 and last updated on 2026-06-17.

CVE-2023-6221

CVE-2023-6221 is a high-severity vulnerability in Machinesense Feverwarn Firmware with a CVSS 3.x base score of 7.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-306.

Key facts

Severity: High (CVSS 3.x base score 7.7)
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-58468
Weakness: CWE-306
Affected product: Machinesense Feverwarn Firmware
Published: 2024-02-01
Last modified: 2026-06-17

Description

The cloud provider MachineSense uses for integration and deployment for multiple MachineSense devices, such as the programmable logic controller (PLC), PumpSense, PowerAnalyzer, FeverWarn, and others is insufficiently protected against unauthorized access. An attacker with access to the internal procedures could view source code, secret credentials, and more.

Frequently asked questions

What is CVE-2023-6221?: The cloud provider MachineSense uses for integration and deployment for multiple MachineSense devices, such as the programmable logic controller (PLC), PumpSense, PowerAnalyzer, FeverWarn, and others is insufficiently protected against unauthorized access. An attacker with access to the internal procedures could view source code, secret credentials, and more.
How severe is CVE-2023-6221?: CVE-2023-6221 has a CVSS 3.x base score of 7.7, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-6221 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-6221?: CVE-2023-6221 affects Machinesense Feverwarn Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-6221?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2023-6221 have an EU (EUVD) identifier?: Yes. CVE-2023-6221 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-58468.
When was CVE-2023-6221 published?: CVE-2023-6221 was published on 2024-02-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:machinesense:feverwarn_firmware:-:*:*:*:*:*:*:*

More vulnerabilities in Machinesense Feverwarn Firmware

CVE-2023-49617 — Critical (CVSS 10.0): The MachineSense application programmable interface (API) is improperly protected and can be accessed without…
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