HOMEVULNERABILITIESCVE-2020-35473
MEDIUM

CVE-2020-35473

CWE-203Published: November 8, 2022· Updated: Jun 17, 2026

4.3
CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2020-35473 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorAdjacent
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected Vendors & Products

bluetooth1 product(s)
bluetooth core specification
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://dl.acm.org/doi/10.1145/3548606.3559372
ADVISORYhttps://www.sigsac.org/ccs/CCS2022/proceedings/ccs-proceedings.html
ADVISORYhttps://dl.acm.org/doi/10.1145/3548606.3559372
ADVISORYhttps://www.sigsac.org/ccs/CCS2022/proceedings/ccs-proceedings.html

All References (4)

→
https://dl.acm.org/doi/10.1145/3548606.3559372Technical Description · Third Party Advisory
→
https://www.sigsac.org/ccs/CCS2022/proceedings/ccs-proceedings.htmlTechnical Description · Third Party Advisory
→
https://dl.acm.org/doi/10.1145/3548606.3559372Technical Description · Third Party Advisory
→
https://www.sigsac.org/ccs/CCS2022/proceedings/ccs-proceedings.htmlTechnical Description · Third Party Advisory

Quick Facts

CVE IDCVE-2020-35473
CVSS Score4.3 / 10
SeverityMEDIUM
WeaknessCWE-203
CISA KEVNo
Affected1 vendor(s)
PublishedNov 8, 2022

Related CVEs (CWE-203)

CVE-2023-40756
9.8
CVE-2019-10071
9.8
CVE-2024-23771
9.8
CVE-2025-27667
9.8
CVE-2024-25714
9.8
CVE-2023-50708
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2020-35473 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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