Bluetooth Low Energy Stack Vulnerability in Cypress PSoC4
CVE-2025-44557

8.1HIGH

Key Information:

Vendor

Cypress

Status
Vendor
CVE Published:
27 June 2025

What is CVE-2025-44557?

A flaw in the Bluetooth Low Energy (BLE) stack used in Cypress PSoC4 v3.66 enables attackers to circumvent the standard pairing process. By crafting a specific pairing_failed packet, an attacker can manipulate the state machine transitions, allowing unauthorized access to the device without proper authentication. This vulnerability poses significant risks, as it enables potential attackers to engage with the system without the necessary permissions.

References

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
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-2025-44557 : Bluetooth Low Energy Stack Vulnerability in Cypress PSoC4