CVE-2025-44557

HIGH EPSS 16.9%

Published Jun 27, 20251y ago · Modified Jun 17, 20261w ago

8.1 CVSS 3.1

High

Published Jun 27, 2025 1y ago

Last Modified Jun 17, 2026 1w ago

Description

A state machine transition flaw in the Bluetooth Low Energy (BLE) stack of Cypress PSoC4 v3.66 allows attackers to bypass the pairing process and authentication via a crafted pairing_failed packet.

CVSS Details

Base Score

8.1

Exploitability

2.8

Impact

5.2

Vector string

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Attack Vector Adjacent

Attack Complexity Low

Privileges Required None

User Interaction None

Scope Unchanged

Confidentiality High

Integrity High

Availability None

Threat Intelligence

EPSS Exploit Probability

16.9% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-303

References 2

github.com https://github.com/yangting111/BLE_TEST/blob/main/result/PoC/Cypress/Auth_bypass.md
infineon.com https://www.infineon.com/cms/en/design-support/tools/sdk/psoc-software/psoc-4-components/psoc-creator-component-datasheet-bluetooth-low-energy-ble/

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.