CVE-2021-40154

MediumCVSS 5.5/10Last modified Jun 17, 2026

Description

NXP LPC55S69 devices before A3 have a buffer over-read via a crafted wlength value in a GET Descriptor Configuration request during use of USB In-System Programming (ISP) mode. This discloses protected flash memory.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-125

Affected software

No affected versions have been published.

Timeline

Published
Dec 1, 2021
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2021-40154: Medium severity, CVSS 5.5 | Vulnix