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CVE-2021-3433

BT: Invalid channel map in CONNECT_IND results to Deadlock

LOW
3.3
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
LOW3.3
Exploit prediction
EPSS 0.2%

Description

Invalid channel map in CONNECT_IND results to Deadlock. Zephyr versions >= v2.5.0 Improper Check or Handling of Exceptional Conditions (CWE-703). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-3c2f-w4v6-qxrp

Affected

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

Zephyr· Zephyrproject
95%
2.5.0 ≤ 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 ≥ v2.5.02.5.0

Remediation

No guide yet

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

Patch and advisory references

References (1)

x_refsource_MISCVendor Advisory
Source: [email protected]
http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-3c2f-w4v6-qxrp

CVSS

3.3LOW[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-703NVD-CWE-Other

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