CVE-2020-6616 json
Some Broadcom chips mishandle Bluetooth random-number generation because a low-entropy Pseudo Random Number Generator (PRNG) is used in sit…
published 2020-05-08 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-27764
- cvss
- 6.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 54%
- public exploits
- 0
- none known
Summary
Some Broadcom chips mishandle Bluetooth random-number generation because a low-entropy Pseudo Random Number Generator (PRNG) is used in situations where a Hardware Random Number Generator (HRNG) should have been used to prevent spoofing. This affects, for example, Samsung Galaxy S8, S8+, and Note8 devices with the BCM4361 chipset. The Samsung ID is SVE-2020-16882 (May 2020).
Patch / fix
- apple ipados 13.5
- apple iphone_os 13.5
- apple mac_os_x 10.13.6, 10.14.6, 10.15.4
Exploit prediction
0.73% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- media.ccc.de https://media.ccc.de/v/DiVOC-6-finding_eastereggs_in_broadcom_s_bluetooth_random_number_generator referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.5 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 3.3 | AV:A/AC:L/Au:N/C:N/I:P/A:N |
References
-
media.ccc.de
/v/DiVOC-6-finding_eastereggs_in_broadcom_s_bluetooth_random_number_generator
exploit, third-party-advisory
-
security.samsungmobile.com
/securityUpdate.smsb
vendor-advisory
-
support.apple.com
/kb/HT211100
third-party-advisory
-
bluetooth.lol
third-party-advisory
-
twitter.com
/naehrdine/status/1255981245147877377
third-party-advisory
-
github.com
/seemoo-lab/internalblue/blob/master/doc/rng.md
third-party-advisory
-
twitter.com
/naehrdine/status/1255980443368919045
third-party-advisory
-
support.apple.com
/kb/HT211168
third-party-advisory
-
seclists.org
/fulldisclosure/2020/May/49
mailing-list, third-party-advisory
-
support.apple.com
/HT211168
third-party-advisory
Sources
- CVE List CVE-2020-6616
- NVD CVE-2020-6616
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