Vulnerability Monitor

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CVE-2021-31532


NXP LPC55S6x microcontrollers (0A and 1B), i.MX RT500 (silicon rev B1 and B2), i.MX RT600 (silicon rev A0, B0), LPC55S6x, LPC55S2x, LPC552x (silicon rev 0A, 1B), LPC55S1x, LPC551x (silicon rev 0A) and LPC55S0x, LPC550x (silicon rev 0A) include an undocumented ROM patch peripheral that allows unsigned, non-persistent modification of the internal ROM.


Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 6.8, with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 48 products from nxp, from nxp, from nxp and 45 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2021, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.


Published

2021-05-06T13:15:12.667

Last Modified

2024-11-21T06:05:51.807

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.8 (MEDIUM)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:P/I:P/A:P

  • Access Vector: LOCAL
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: PARTIAL
Exploitability Score

3.9

Impact Score

6.4

Weaknesses
  • Type: Primary
    NVD-CWE-Other

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System nxp lpc55s69jbd100_firmware - Yes
Hardware nxp lpc55s69jbd100 0a No
Hardware nxp lpc55s69jbd100 1b No
Operating System nxp lpc55s66jbd100_firmware - Yes
Hardware nxp lpc55s66jbd100 0a No
Hardware nxp lpc55s66jbd100 1b No
Operating System nxp lpc55s69jev98_firmware - Yes
Hardware nxp lpc55s69jev98 0a No
Hardware nxp lpc55s69jev98 1b No
Operating System nxp lpcs66jev98_firmware - Yes
Hardware nxp lpcs66jev98 0a No
Hardware nxp lpcs66jev98 1b No
Operating System nxp lpc55s69jbd64_firmware - Yes
Hardware nxp lpc55s69jbd64 0a No
Hardware nxp lpc55s69jbd64 1b No
Operating System nxp lpcs66jbd64_firmware - Yes
Hardware nxp lpcs66jbd64 0a No
Hardware nxp lpcs66jbd64 1b No
Operating System nxp i.mx_rt500_firmware - Yes
Hardware nxp i.mx_rt500 b1 No
Hardware nxp i.mx_rt500 b2 No
Operating System nxp i.mx_rt600_firmware - Yes
Hardware nxp i.mx_rt600 a0 No
Hardware nxp i.mx_rt600 b0 No
Operating System nxp lpc55s28_firmware - Yes
Hardware nxp lpc55s28 0a No
Hardware nxp lpc55s28 1b No
Operating System nxp lpc55s26_firmware - Yes
Hardware nxp lpc55s26 0a No
Hardware nxp lpc55s26 1b No
Operating System nxp lpc5528_firmware - Yes
Hardware nxp lpc5528 0a No
Hardware nxp lpc5528 1b No
Operating System nxp lpc5526_firmware - Yes
Hardware nxp lpc5526 0a No
Hardware nxp lpc5526 1b No
Operating System nxp lpc55s16jbd100_firmware - Yes
Hardware nxp lpc55s16jbd100 0a No
Operating System nxp lpc55s16jev98_firmware - Yes
Hardware nxp lpc55s16jev98 0a No
Operating System nxp lpc55s16jbd64_firmware - Yes
Hardware nxp lpc55s16jbd64 0a No
Operating System nxp lpc55s14jbd100_firmware - Yes
Hardware nxp lpc55s14jbd100 0a No
Operating System nxp lpc55s14jbd64_firmware - Yes
Hardware nxp lpc55s14jbd64 0a No
Operating System nxp lpc5516jbd100_firmware - Yes
Hardware nxp lpc5516jbd100 0a No
Operating System nxp lpc5516jev98_firmware - Yes
Hardware nxp lpc5516jev98 0a No
Operating System nxp lpc5516jbd64_firmware - Yes
Hardware nxp lpc5516jbd64 0a No
Operating System nxp lpc5514jbd100_firmware - Yes
Hardware nxp lpc5514jbd100 0a No
Operating System nxp lpc5514jbd64_firmware - Yes
Hardware nxp lpc5514jbd64 0a No
Operating System nxp lpc5512jbd100_firmware - Yes
Hardware nxp lpc5512jbd100 0a No
Operating System nxp lpc5512jbd64_firmware - Yes
Hardware nxp lpc5512jbd64 0a No

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For nxp's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.