CVE-2021-3436

BT: Possible to overwrite an existing bond during keys distribution phase when the identity address of the bond is known

MEDIUM
6.5
CVSS Score
Published: October 5, 2021 at 08:50 PM UTC
Updated: June 17, 2026 at 04:05 AM UTC
2 products affected across 2 vendorsZephyrZephyr

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Severity
MEDIUM6.5
Exploit prediction
EPSS 1.0%

Description

BT: Possible to overwrite an existing bond during keys distribution phase when the identity address of the bond is known. Zephyr versions >= 1.14.2, >= 2.4.0, >= 2.5.0 contain Use of Multiple Resources with Duplicate Identifier (CWE-694). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-j76f-35mc-4h63

Affected

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

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (1)

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
LOW
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-694NVD-CWE-Other

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