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    CVE-2021-43619

    Trusted 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.

    Published:Mar 1, 2022
    Last Modified:Jun 5, 2026
    EPS:Mar 1, 2022
    EPSS Score:0.00172
    CVSS Score:7.8

    Affected Products

    Vendor
    Trustedfirmware
    Product
    Trusted Firmware-m

    Exploits

    https://tf-m-user-guide.trustedfirmware.org/docs/security/security_advisories/fwu_write_vulnerability.htmlhttps://tf-m-user-guide.trustedfirmware.org/docs/security/security_advisories/fwu_write_vulnerability.html

    Related CVEs

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    CVE-2023-40271 (CVSS 7.5) — In Trusted Firmware-M through TF-Mv1.8.0, for platforms that integrate the CryptoCell accelerator, when the Cr…
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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High