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CVE-2020-15509

MEDIUM
6.5
CVSS Score
Published: July 7, 2020 at 01:56 PM UTC
Updated: June 17, 2026 at 02:56 AM UTC
2 products affected across 1 vendorAndroid Ble LibraryDfu Library

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.5%

Description

Nordic Semiconductor Android BLE Library through 2.2.1 and DFU Library through 1.10.4 for Android (as used by nRF Connect and other applications) can engage in unencrypted communication while showing the user that the communication is purportedly encrypted. The problem is in bond creation (e.g., internalCreateBond in BleManagerHandler).

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

References (3)

x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/NordicSemiconductor/Android-BLE-Library/commits/master
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/NordicSemiconductor/Android-DFU-Library/commits/release
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://secretdiary.ninja/index.php/2020/07/03/norec-attack-stripping-ble-encryption-from-nordicsemis-android-library-cve-2020-15509/

CVSS

6.5MEDIUM[email protected]
Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-319

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