Bluetooth Low Energy Vulnerability in Zephyr's Stack
CVE-2025-10456

7.1HIGH

Key Information:

Status
Vendor
CVE Published:
19 September 2025

What is CVE-2025-10456?

A security flaw exists within the handling of fixed channels in the Bluetooth Low Energy (BLE) protocol utilized by the Zephyr Bluetooth stack. This vulnerability can allow an attacker to induce the BLE device to incorrectly attempt to disconnect a fixed channel, as permitted by the Bluetooth specification. The result can lead to unpredictable behavior, such as crashes, assertion failures, or memory corruption within the impacted device. Remediation should be sought through security updates provided by the vendor.

Affected Version(s)

Zephyr * <= 4.1.0

References

CVSS V3.1

Score:
7.1
Severity:
HIGH
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2025-10456 : Bluetooth Low Energy Vulnerability in Zephyr's Stack