How severe is CVE-2024-40086?

CVE-2024-40086 has a CVSS 3.x base score of 9.6, rated critical severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-40086 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.

How do I fix CVE-2024-40086?

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

Does CVE-2024-40086 have an EU (EUVD) identifier?

Yes. CVE-2024-40086 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-38408.

When was CVE-2024-40086 published?

CVE-2024-40086 was published on 2024-10-21 and last updated on 2026-07-05.

CVE-2024-40086

CVE-2024-40086 is a critical-severity vulnerability with a CVSS 3.x base score of 9.6. 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-120.

Key facts

Severity: Critical (CVSS 3.x base score 9.6)
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-38408
Weakness: CWE-120
Published: 2024-10-21
Last modified: 2026-07-05

Description

A Buffer Overflow vulnerability in the local_app_set_router_wifi_SSID_PWD function of Vilo 5 Mesh WiFi System <= 5.16.1.33 allows remote, unauthenticated attackers to execute arbitrary code via a password field larger than 64 bytes in length.

Frequently asked questions

What is CVE-2024-40086?: A Buffer Overflow vulnerability in the local_app_set_router_wifi_SSID_PWD function of Vilo 5 Mesh WiFi System <= 5.16.1.33 allows remote, unauthenticated attackers to execute arbitrary code via a password field larger than 64 bytes in length.
How severe is CVE-2024-40086?: CVE-2024-40086 has a CVSS 3.x base score of 9.6, rated critical severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-40086 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.
How do I fix CVE-2024-40086?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2024-40086 have an EU (EUVD) identifier?: Yes. CVE-2024-40086 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-38408.
When was CVE-2024-40086 published?: CVE-2024-40086 was published on 2024-10-21 and last updated on 2026-07-05.

References

https://github.com/byu-cybersecurity-research/vilo/blob/main/vulns/CVE-2024-40086.md

EU advisories (EUVD)

http://vilo.com

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