CVE-2019-9506highCWE-310

CVE-2019-9506: high-severity vulnerability in Bluetooth BR/EDR

Blutooth BR/EDR specification does not specify sufficient encryption key length and allows an attacker to influence key length negotiation

Published · Updated

Follow this CVE+ Monitor BR/EDR+ Monitor linux

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.6epss 2.7%
The Bluetooth BR/EDR specification up to and including version 5.1 permits sufficiently low encryption key length and does not prevent an attacker from influencing the key length negotiation. This allows practical brute-force attacks (aka "KNOB") that can decrypt traffic and inject arbitrary ciphertext without the victim noticing.
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
Affected products
Bluetooth · BR/EDR
Related CVEs — Bluetooth BR/EDR

In the same product, most dangerous first.

CVE-2020-10135MEDIUMBluetooth devices supporting BR/EDR v5.2 and earlier are vulnerable to impersonation attacksEPSS 2.4%