01 Record

CVE-2020-6616

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)

UnratedPUBLISHEDCNA: mitre

CNA base scoreUnratedNo CNA CVSS vector

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02 Description

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)

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 0.73% probability of exploitation activity in the next 30 days.
EPSS percentile: Equal to or higher than the score of 53.7% of scored records. A rank, not a probability.
NVD base score: 6.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD analysis status: Modified. NVD last modified this record on 2026-06-17.
Red Hat severity: No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published: 2020-05-08 19:50Z6 YR AGO
Last updated: 2024-08-04 09:11Z2 YR AGO
Reserved: 2020-01-08
Assigning CNA: mitre
Record state: PUBLISHED
Severity: Not rated by the issuing CNA
CNA CVSS vector: Not published by the issuing CNA
Weaknesses: No CWE assigned
Data version: 5.1
Document digest: 1d1518efa36a1e649535300bc3a90cca6b77cecce92b884d3a0df272596e3fb0

05 Affected products

VendorProductVersionsPlatforms

appleipadosNot specified—

appleiphone_osNot specified—

applemac_os_xNot specified—

googleandroidNot specified—

samsunggalaxy_note8Not specified—

samsunggalaxy_s8Not specified—

samsunggalaxy_s8_plusNot specified—

06 References

security.samsungmobile.comhttps://security.samsungmobile.com/securityUpdate.smsbx_refsource_CONFIRM
support.apple.comhttps://support.apple.com/kb/HT211100x_refsource_CONFIRM
bluetooth.lolhttp://bluetooth.lolx_refsource_MISC
media.ccc.dehttps://media.ccc.de/v/DiVOC-6-finding_eastereggs_in_broadcom_s_bluetooth_random_number_generatorx_refsource_MISC
twitter.comhttps://twitter.com/naehrdine/status/1255981245147877377x_refsource_MISC
github.comhttps://github.com/seemoo-lab/internalblue/blob/master/doc/rng.mdx_refsource_MISC
twitter.comhttps://twitter.com/naehrdine/status/1255980443368919045x_refsource_MISC
support.apple.comhttps://support.apple.com/kb/HT211168x_refsource_CONFIRM
seclists.org20200529 APPLE-SA-2020-05-26-1 iOS 13.5 and iPadOS 13.5http://seclists.org/fulldisclosure/2020/May/49mailing-listx_refsource_FULLDISC
support.apple.comhttps://support.apple.com/HT211168x_refsource_CONFIRM