CVE-2021-43619

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Summary

CVECVE-2021-43619
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-03-01 05:15:07 UTC
Updated2026-06-05 20:07:06 UTC
DescriptionTrusted Firmware M 1.4.x through 1.4.1 has a buffer overflow issue in the Firmware Update partition. In the IPC model, a psa_fwu_write caller from SPE or NSPE can overwrite stack memory locations.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from [email protected]

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

EPSS: 0.001110000 probability, percentile 0.290730000 (date 2026-06-11)

Problem Types: CWE-120 | n/a

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
2.0[email protected]Primary4.6AV:L/AC:L/Au:N/C:P/I:P/A:P

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Trustedfirmware Trusted Firmware-m 1.4.0 All All All
Operating System Trustedfirmware Trusted Firmware-m 1.4.1 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
trusted-firmware-m.git - Trusted Firmware for M profile Arm CPUs af854a3a-2127-422b-91ae-364da2661108 git.trustedfirmware.org Patch, Third Party Advisory
Arm Security Center af854a3a-2127-422b-91ae-364da2661108 developer.arm.com Vendor Advisory
Advisory TFMV-5 — Trusted Firmware-M v1.5.0+a09adda4 documentation af854a3a-2127-422b-91ae-364da2661108 tf-m-user-guide.trustedfirmware.org Exploit, Patch, Third Party Advisory
Trusted Firmware - Open Source Secure Software - Trusted Firmware af854a3a-2127-422b-91ae-364da2661108 www.trustedfirmware.org Product
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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