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.
Exploits (1)
References (2)
Core 2
Core References
Broken Link, Third Party Advisory x_refsource_misc
https://www.darkmatter.ae/xen1thlabs/published-advisories/
Third Party Advisory x_refsource_misc
https://github.com/Xen1thLabs-AE/CVE-2021-40154
Scores
CVSS v3
6.1
EPSS
0.0134
EPSS Percentile
80.1%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
Details
CWE
CWE-125
Status
published
Products (3)
nxp/lpc55s69jbd100_firmware
nxp/lpc55s69jbd64_firmware
nxp/lpc55s69jev98_firmware
Published
Dec 01, 2021
Tracked Since
Feb 18, 2026