CVE-2025-44557

HIGH

Cypress PSoC4 <3.66 - Auth Bypass

Title source: llm
STIX 2.1

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.

Scores

CVSS v3 8.1
EPSS 0.0010
EPSS Percentile 27.7%
Attack Vector ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-303
Status published
Published Jun 27, 2025
Tracked Since Feb 18, 2026