CVE-2026-54467

Mailbox Initialization Accepts Untrusted Pointer in Trusted Firmware‑M

Published Aug 26, 2026 CVSS 3.1 · 7 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Mailbox Initialization Accepts Untrusted Pointer in Trusted Firmware‑M
Type Values Removed Values Added
Description 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.
First Time appeared Trustedfirmware
Trustedfirmware trusted Firmware-m
Weaknesses CWE-283
CPEs cpe:2.3:a:trustedfirmware:trusted_firmware-m:*:*:*:*:*:*:*:*
Vendors & Products Trustedfirmware
Trustedfirmware trusted Firmware-m
References
Metrics cvssV3_1

{'score': 7, 'vector': 'CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 26, 2026, 2:10 PM
Reserved
Jun 15, 2026, 3:46 PM
Status
Deferred
Published
Aug 26, 2026, 5:18 AM
Modified
Sep 9, 2026, 4:04 PM