CVE-2021-3430

BT: Assertion failure on repeated LL_CONNECTION_PARAM_REQ

HIGH

7.5

CVSS Score

Published: June 28, 2022 at 07:45 PM UTC

Updated: June 17, 2026 at 04:05 AM UTC

2 products affected across 2 vendorsZephyrZephyr

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Severity

HIGH7.5

Exploit prediction

EPSS 0.9%

Description

Assertion reachable with repeated LL_CONNECTION_PARAM_REQ. Zephyr versions >= v1.14 contain Reachable Assertion (CWE-617). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-46h3-hjcq-2jjr

Affected

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

Zephyr · Zephyrproject

95%

1.14.0 ≤ v < 2.6.0

Affected range stops below 2.6.0, so it looks safe — our inference, not a vendor statement

Zephyr · Zephyrproject RTOS

60%

v ≥ v1.14.0v ≥ v2.5.01.14.0 2.5.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_MISCThird Party Advisory

Source: [email protected]

http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-46h3-hjcq-2jjr

CVSS

7.5HIGH[email protected]

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

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-617

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