CVE-2024-7726 Arbitrary Code execution via exposed JTAG port in Kioxia CM6, PM6, PM7
Attackers with physical access can exploit an exposed JTAG port to execute arbitrary code and bypass firmware signature verification on Kioxia SSDs.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-7726?
CVE-2024-7726 is a medium-severity vulnerability in Kioxia CM6, published on 20 Dec 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
There exists an unauthenticated accessible JTAG port on the Kioxia PM6, PM7 and CM6 devices - On the Kioxia CM6, PM6 and PM7 disk drives it was discovered that the 2 main CPU cores of the SoC can be accessed via an open JTAG debug port that is exposed on the drive’s circuit board. Due to the wide cutout of the enclosures, the JTAG port can be accessed without having to open the disk enclosure. Utilizing the JTAG debug port, an attacker with (temporary) physical access can get full access to the firmware and memory on the 2 main CPU cores within the drive including the execution of arbitrary code, the modification of firmware execution flow and data or bypassing the firmware signature verification during boot-up.
Weakness: CWE-306
Which versions are affected by CVE-2024-7726?
It affects 3 products.
Products include Kioxia Cm6 Firmware, Kioxia Pm6 Firmware, Kioxia Pm7 Firmware.
How do I fix CVE-2024-7726?
No fix has been published for CVE-2024-7726 yet. Limit exposure of the affected software until one is available.
Is CVE-2024-7726 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-7726 exists.
Sources
Also known as GHSA-3hh8-94j4-62rh.