CVE-2020-12859Network attack vector

Device re-identification via cleartext protocol fields

Published May 18, 2020 · Updated Aug 4, 2024

Information disclosure in COVIDSafe 1.0.17 and earlier allows remote attackers to identify a device model from cleartext Bluetooth payloads. The OpenTrace/BlueTrace payload transmits unnecessary device-identifying fields without encryption, exposing model-specific characteristics to nearby observers. No authentication or user interaction is required, and the exposed model information enables re-identification, especially for uncommon devices or sparse environments.

CVSS severity5.3
Medium
EPSS probability0.69%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in COVIDSafe 1.0.17 and earlier allows remote attackers to identify a device model from cleartext Bluetooth payloads. The OpenTrace/BlueTrace payload transmits unnecessary device-identifying fields without encryption, exposing model-specific characteristics to nearby observers. No authentication or user interaction is required, and the exposed model information enables re-identification, especially for uncommon devices or sparse environments.

The record

CVE
CVE-2020-12859
Published
May 18, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-312, T1040
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 18, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.0NVDAV:N/AC:L/Au:N/C:P/I:N/A:N
5.3NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-312Cleartext Storage of Sensitive Information
T1040Network Sniffing

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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