CVE-2021-3436: BT: Possible to overwrite an existing bond during keys distribution phase when the identity address of the bond is known

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-10-05 · updated 2026-06-17
Weakness: CWE-694

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 products

zephyrproject zephyr: 1.14.2, 2.4.0, 2.5.0

References

http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-j76f-35mc-4h63
http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-j76f-35mc-4h63

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