CVE-2020-35473
mediumpriority · track · 17OT risk · elevatedEPSS 0.004 · 30 %ileEUUSEPSS · scored 2026-10-27
An information leakage vulnerability in the Bluetooth Low Energy advertisement scan response in Bluetooth Core Specifications 4.0 through 5.2, and extended scan response in Bluetooth Core Specifications 5.0 through 5.2, may be used to identify devices using Resolvable Private Addressing (RPA) by their response or non-response to specific scan requests from remote addresses. RPAs that have been associated with a specific remote device may also be used to identify a peer in the same manner by using its reaction to an active scan request. This has also been called an allowlist-based side channel.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
- bluetooth bluetooth core specification4.0 → 5.2nvdUScpe:2.3:a:bluetooth:bluetooth_core_specification:*:*:*:*:*:*:*:*
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (7)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2020-35473/cnnvd
- https://dl.acm.org/doi/10.1145/3548606.3559372cnnvd
- https://www.sigsac.org/ccs/CCS2022/proceedings/ccs-proceedings.htmlcnnvd
- https://dl.acm.org/doi/10.1145/3548606.3559372enisa_euvd
- https://www.sigsac.org/ccs/CCS2022/proceedings/ccs-proceedings.htmlenisa_euvd
- https://dl.acm.org/doi/10.1145/3548606.3559372Technical DescriptionThird Party Advisorynvd
- https://www.sigsac.org/ccs/CCS2022/proceedings/ccs-proceedings.htmlTechnical DescriptionThird Party Advisorynvd
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