CVE-2026-54467: CWE-283 Unverified Ownership in TrustedFirmware Trusted Firmware-M
Description
CVE-2026-54467 is a high-severity vulnerability in Trusted Firmware-M versions 2 through 2.3.0 before commit 00d1b3e. It involves mailbox initialization on PSOC64 and RP2350 platforms accepting a non-secure, unvalidated pointer, leading to unverified ownership issues.
CVSS v3.1
Score 7.0high
Affected software
TrustedFirmware
Trusted Firmware-M
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-283) in Trusted Firmware-M affects versions 2 up to but not including the commit 00d1b3e. The mailbox initialization process on PSOC64 and RP2350 platforms improperly accepts a pointer from a non-secure source without validation, resulting in unverified ownership. This flaw could allow an attacker with low privileges and physical access (per CVSS vector AV:P/PR:L) to cause a complete compromise of confidentiality, integrity, and availability of the system.
Potential Impact
Successful exploitation could lead to full compromise of the affected system's confidentiality, integrity, and availability. The vulnerability requires physical access and low privileges but does not require user interaction. The scope is changed, indicating potential impact beyond the vulnerable component.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround is currently documented. Users should monitor TrustedFirmware advisories for updates and apply patches once available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-06-15T15:46:56.962Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a8e6a16acd9273b49605e6e
Added to database: 08/26/2026, 04:22:46 UTC
Last enriched: 09/09/2026, 21:37:10 UTC
Last updated: 10/10/2026, 06:48:17 UTC
Views: 78
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