CVE-2021-40154

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.

CVSS v3.1 NVD

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

CVSS v3.1 MITRE

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

CVSS v2.0 NVD

2.1 LOWAV:L/AC:L/Au:N/C:P/I:N/A:N

EPSS

0.77% chance of exploitation in the next 30 days, 55th percentile

Published

2021-12-01

Updated

2024-08-04

Proof-of-concept exploits (1)

• Jeromeyoung/CVE-2021-401546★ · 2023-02-18

Security advisories

• Xen1thLabs-AE/CVE-2021-40154
• https://www.darkmatter.ae/xen1thlabs/published-advisories

References

• CVE Record
• NVD entry

Related

• CVE-2021-22205
• CVE-2021-22210
• CVE-2021-24084
• CVE-2021-26084
• CVE-2021-26086
• CVE-2021-27965