What’s Vulnerable › Vulnerabilities

CVE-2024-40892: Firewalla BTLE Weak Credentials

• Severity: high (CVSS 7.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-08-12 · updated 2026-06-17
• Weakness: CWE-1391

Description

A weak credential vulnerability exists in Firewalla Box Software versions before 1.979. This vulnerability allows a physically close attacker to use the license UUID for authentication and provision SSH credentials over the Bluetooth Low-Energy (BTLE) interface. Once an attacker gains access to the LAN, they could log into the SSH interface using the provisioned credentials. The license UUID can be acquired through plain-text Bluetooth sniffing, reading the QR code on the bottom of the device, or brute-forcing the UUID (though this is less likely).

Affected products

• Firewalla Box Software: before 1.979 — fixed in 1.979

How to fix

Upgrade to a fixed version: Firewalla Box Software 1.979. Check the vendor advisory for mitigations.

References

• https://vulncheck.com/advisories/firewalla-bt-weak-credentials
• https://www.labs.greynoise.io/grimoire/2024-08-20-bluuid-firewalla/

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