CVE-2025-44557

8.1 HIGH

Published: June 27, 2025 Modified: April 15, 2026

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

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

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

https://github.com/yangting111/BLE_TEST/blob/main/result/PoC/Cypress/Auth_bypass.md

Source: cve@mitre.org

https://www.infineon.com/cms/en/design-support/tools/sdk/psoc-software/psoc-4-components/psoc-creator-component-datasheet-bluetooth-low-energy-ble/

Source: cve@mitre.org

2 reference(s) from NVD

Quick Stats

CVSS v3 Score

8.1 / 10.0

EPSS (Exploit Probability)

0.0%

10th percentile

Exploitation Status

Not in CISA KEV

Weaknesses (CWE)

CWE-303

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