CVE-2026-54467 Missing authorization in Trusted Firmware-M
Attackers can exploit unvalidated pointer handling in mailbox initialization to execute arbitrary code or escalate privileges on affected embedded platforms.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-54467?
CVE-2026-54467 is a high-severity missing authorization vulnerability in TrustedFirmware Trusted Firmware-M, published on 26 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-283
Which versions are affected by CVE-2026-54467?
How do I fix CVE-2026-54467?
No fix has been published for CVE-2026-54467 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-54467 being exploited?
There is no known exploitation of CVE-2026-54467 in the wild and no public exploit code.
Sources
Also known as GHSA-mv67-8j6q-2cx5, UBUNTU-CVE-2026-54467.