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TI-2021-17336 Aliases CVE-2021-40154GHSA-f88h-2xxc-h4r4

NXP LPC55S69 devices before A3 have a buffer over-read via a crafted wlength value in a…

Priority LOW 29CWE-125Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · None · Low
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

EPSS 0.00772 55th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 9

CPEVersionsRoleVendor
cpe:2.3:o:nxp:lpc55s69jbd100_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableNXP
cpe:2.3:h:nxp:lpc55s69jbd100:0a:*:*:*:*:*:*:*0aRunning onNXP
cpe:2.3:h:nxp:lpc55s69jbd100:1b:*:*:*:*:*:*:*1bRunning onNXP
cpe:2.3:o:nxp:lpc55s69jbd64_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableNXP
cpe:2.3:h:nxp:lpc55s69jbd64:0a:*:*:*:*:*:*:*0aRunning onNXP
cpe:2.3:h:nxp:lpc55s69jbd64:1b:*:*:*:*:*:*:*1bRunning onNXP
cpe:2.3:o:nxp:lpc55s69jev98_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableNXP
cpe:2.3:h:nxp:lpc55s69jev98:0a:*:*:*:*:*:*:*0aRunning onNXP
cpe:2.3:h:nxp:lpc55s69jev98:1b:*:*:*:*:*:*:*1bRunning onNXP
  • cpe:2.3:o:nxp:lpc55s69jbd100_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NXP
  • cpe:2.3:h:nxp:lpc55s69jbd100:0a:*:*:*:*:*:*:* Versions 0a Running on ·NXP
  • cpe:2.3:h:nxp:lpc55s69jbd100:1b:*:*:*:*:*:*:* Versions 1b Running on ·NXP
  • cpe:2.3:o:nxp:lpc55s69jbd64_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NXP
  • cpe:2.3:h:nxp:lpc55s69jbd64:0a:*:*:*:*:*:*:* Versions 0a Running on ·NXP
  • cpe:2.3:h:nxp:lpc55s69jbd64:1b:*:*:*:*:*:*:* Versions 1b Running on ·NXP
  • cpe:2.3:o:nxp:lpc55s69jev98_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NXP
  • cpe:2.3:h:nxp:lpc55s69jev98:0a:*:*:*:*:*:*:* Versions 0a Running on ·NXP
  • cpe:2.3:h:nxp:lpc55s69jev98:1b:*:*:*:*:*:*:* Versions 1b Running on ·NXP

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-40154
  2. 2026-10-03 Alias added: GHSA-f88h-2xxc-h4r4

References

Advisory 2

  • TI-2022-07063 NXP LPC55S66JBD64, LPC55S66JBD100, LPC55S66JEV98, LPC55S69JBD64, LPC55S69JBD100, and… CVSS 3.1HIGH 7.8
  • TI-2021-11656 NXP LPC55S6x microcontrollers (0A and 1B), i.MX RT500 (silicon rev B1 and B2), i.MX RT600… CVSS 3.1MEDIUM 6.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences