Description
A physical attack vulnerability exists in certain Moxa industrial computers using TPM-backed LUKS full-disk encryption on Moxa Industrial Linux 3, where the discrete TPM is connected to the CPU via an SPI bus. Exploitation requires invasive physical access, including opening the device and attaching external equipment to the SPI bus to capture TPM communications. If successful, the captured data may allow offline decryption of eMMC contents. This attack cannot be performed through brief or opportunistic physical access and requires extended physical access, possession of the device, appropriate equipment, and sufficient time for signal capture and analysis. Remote exploitation is not possible.
Scores
CVSS v3
6.8
EPSS
0.0001
EPSS Percentile
0.5%
Attack Vector
PHYSICAL
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-319
Status
published
Products (35)
moxa/uc-1222a_firmware
< 1.4
moxa/uc-2222a-t-ap_firmware
< 1.4
moxa/uc-2222a-t-eu_firmware
< 1.4
moxa/uc-2222a-t-us_firmware
< 1.4
moxa/uc-2222a-t_firmware
< 1.4
moxa/uc-3420a-t-lte_firmware
< 1.2
moxa/uc-3424a-t-lte_firmware
< 1.2
moxa/uc-3430a-t-lte-wifi_firmware
< 1.2
moxa/uc-3434a-t-lte-wifi_firmware
< 1.2
moxa/uc-4410a-t_firmware
< 1.3
... and 25 more
Published
Feb 05, 2026
Tracked Since
Feb 18, 2026