What is CVE-2026-54467?

CVE-2026-54467 is a high-severity vulnerability in Trustedfirmware Trusted Firmware-M, classified under CWE-283. CVSS score: 7.0/10. Published 2026-08-26.

How severe is CVE-2026-54467?

High severity. CVSS v3 base score is 7.0 out of 10.

Vulnerability in Trustedfirmware Trusted Firmware-M

CVE-2026-54467

On the Trusted Firmware-M (TF-M) 2 through 2.3.0 platform before 00d1b3e, mailbox initialization on PSOC64 and RP2350 accepts a non-secure, unvalidated, supplied pointer.

EPSS: 0.002 (4.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Trustedfirmware Trusted Firmware-m

Weakness classification (CWE)

CWE-283

References

cve@mitre.org
cve@mitre.org

Frequently asked questions

What is CVE-2026-54467?: CVE-2026-54467 is a high-severity vulnerability in Trustedfirmware Trusted Firmware-M, classified under CWE-283. CVSS score: 7.0/10. Published 2026-08-26.
How severe is CVE-2026-54467?: High severity. CVSS v3 base score is 7.0 out of 10.