CVE-2020-27264

BLE key recovery via deterministic key generation

Published Jan 19, 2021 · Updated Aug 4, 2024

Insufficiently random keys in SOOIL Dana Diabecare RS and AnyDana apps before 3.0 allow physically proximate attackers to recover BLE keys. The pump-to-app authentication protocol derives deterministic keys, reducing the search space enough for brute-force recovery over Bluetooth Low Energy. The attack requires no authentication but does require Bluetooth proximity to an affected pump and companion mobile application.

CVSS severity8.8
High
EPSS probability0.54%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insufficiently random keys in SOOIL Dana Diabecare RS and AnyDana apps before 3.0 allow physically proximate attackers to recover BLE keys. The pump-to-app authentication protocol derives deterministic keys, reducing the search space enough for brute-force recovery over Bluetooth Low Energy. The attack requires no authentication but does require Bluetooth proximity to an affected pump and companion mobile application.

The record

CVE
CVE-2020-27264
Published
Jan 19, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-330
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 19, 2021CVE 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 vectoradjacent
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.3NIST NVDAV:A/AC:L/Au:N/C:P/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-330Use of Insufficiently Random Values

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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