MachineSense FeverWarn Missing Authentication for Critical Function

published 2024-02-01 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-53561

cvss: 10.0; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.8%; EPSS 0.8% chance of exploitation in 30 days, percentile 56%
public exploits: 0; none known

The MachineSense application programmable interface (API) is improperly protected and can be accessed without authentication. A remote attacker could retrieve and modify sensitive information without any authentication.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-24-025-01 updated 2024-01-25 cvss 10.0

MachineSense FeverWarn

MachineSense LLC. FeverWarn ESP32, RaspberryPi, DataHub_RaspberryPi
affected: mitigation machinesense.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 2 y ago (2024-02-07)

Exploit prediction

0.80% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	10.0	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
NVD	3.1	9.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected products

MachineSense FeverWarn

Classification

Weakness

CWE-306 Missing Authentication for Critical Functionality

References

cisa.gov /news-events/ics-advisories/icsa-24-025-01
third-party-advisory, us-government-resource
machinesense.com /pages/about-machinesense
product

Sources

CVE List CVE-2023-49617
NVD CVE-2023-49617

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary