Security readout for executives and security teams
Plain-English summary
Vilo 5 Mesh WiFi systems up to firmware 5.16.1.33 may expose sensitive system logs through an unauthenticated Boa webserver. The business risk is information disclosure, not device takeover based on the provided sources. Exposure depends on whether the webserver is reachable from untrusted networks.
Executive priority
Prioritize this as a moderate confidentiality issue for networks using Vilo 5 mesh devices. It is most urgent where router management is reachable beyond a tightly controlled admin network, or where device logs could expose credentials, topology, or operational details.
Technical view
CVE-2024-40091 is a CWE-306 missing-authentication flaw in the Boa webserver on Vilo 5 Mesh WiFi System <= 5.16.1.33. The listed CVSS 3.1 score is 5.3, with adjacent-network attack vector, high complexity, no privileges, no user interaction, and high confidentiality impact.
Likely exposure
Organizations using Vilo 5 Mesh WiFi System firmware 5.16.1.33 or earlier may be exposed if the device webserver is reachable from guest, adjacent, WAN, or otherwise untrusted network paths. The source bundle does not identify CPEs or a vendor-maintained affected-products list.
Exploitation context
The sources do not show CISA KEV listing or confirmed active exploitation. The CVSS vector indicates adjacent-network reachability and high attack complexity, while the description says unauthenticated remote retrieval of sensitive logs is possible. Evidence is limited to the CVE data and linked research reference.
Researcher notes
The provided record has sparse affected-product metadata: vendor, product, versions, and CPEs are listed as n/a despite the title naming Vilo 5 Mesh WiFi System <= 5.16.1.33. Validate against the linked research note and vendor guidance before broad scoping decisions.
Mitigation direction
- Inventory Vilo 5 Mesh WiFi devices and record firmware versions.
- Restrict Boa/web management access to trusted administrative networks only.
- Disable WAN, guest-network, or remote access to device management where possible.
- Check Vilo/vendor guidance for firmware updates or official mitigation.
- Treat exposed logs as sensitive and rotate disclosed credentials or secrets.
Validation and detection
- Confirm whether any Vilo 5 devices run firmware 5.16.1.33 or earlier.
- Verify management interfaces are unreachable from guest, WAN, and untrusted segments.
- Review device logs for sensitive data that could aid follow-on attacks.
- Monitor network telemetry for unexpected access to device web services.
- Recheck vendor advisories for patch status and affected-version clarification.
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-2024-40091 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
- Medium
- CVSS
- 5.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/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.
SSVC decision data
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:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N1.63.6CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
5.3MediumVector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/byu-cybersecurity-research/vilo/blob/main/vulns/CVE-2024-40091.mdCVE reference, mitre
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.