Security readout for executives and security teams
Plain-English summary
FeverWarn exposes an API that should require authentication but does not. A remote unauthenticated attacker could read or change sensitive information. This is critical because no credentials or user interaction are required when affected systems are reachable over a network.
Executive priority
Prioritize immediate exposure assessment and network containment. A reachable affected API could allow sensitive operational data access or modification without credentials, creating business and safety risk even without confirmed exploitation.
Technical view
CVE-2023-49617 is CWE-306, missing authentication for a critical function, in MachineSense FeverWarn ESP32, RaspberryPi, and DataHub RaspberryPi. The CVSS 3.1 score is 10.0 with network access, low complexity, no privileges, no user interaction, changed scope, and high confidentiality and integrity impact.
Likely exposure
Exposure is most likely where the listed FeverWarn variants are deployed and their API is reachable from untrusted networks. The bundle does not identify CPEs, deployment prevalence, internet exposure counts, or affected firmware ranges beyond the named variants.
Exploitation context
The provided bundle marks KEV as false and does not cite active exploitation. Risk remains serious because the weakness allows remote unauthenticated access to retrieve and modify sensitive information if the API is reachable.
Researcher notes
Evidence is limited to the CVE bundle, CVSS vector, CWE, affected variants, CISA advisory reference, and vendor reference. No exploit status, patch version, firmware range, or detailed technical advisory content is included here.
Mitigation direction
- Review CISA advisory ICSA-24-025-01 and MachineSense guidance for supported remediation.
- Inventory FeverWarn ESP32, RaspberryPi, and DataHub RaspberryPi deployments.
- Remove API access from public or untrusted networks pending vendor guidance.
- Apply any vendor-provided update, configuration change, or replacement path when confirmed.
- Monitor affected networks for unexpected FeverWarn API access or data changes.
Validation and detection
- Confirm whether any deployed FeverWarn device matches the affected variants listed in the CVE bundle.
- Determine whether the FeverWarn API is reachable from untrusted network zones.
- Verify whether authentication controls are enforced on administrative or sensitive API functions.
- Review logs or monitoring for unexplained reads, writes, or configuration changes.
- Document remediation status against CISA and vendor guidance once reviewed.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-306: Credential and account abuse lookup
Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2023-49617 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 10 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N3.95.8Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
10CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.cisa.gov/news-events/ics-advisories/icsa-24-025-01CVE reference
- https://machinesense.com/pages/about-machinesenseCVE reference
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Missing Authentication for Critical Function
Missing Authentication for Critical Function represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.