Description
An application can be configured to block boot attempts after consecutive tamper resets are detected, which may not occur as expected. This is possible because the TAMPERRSTCAUSE register may not be properly updated when a level 4 tamper event (a tamper reset) occurs. This impacts Series 2 HSE-SVH devices, including xG23B, xG24B, xG25B, and xG28B, but does not impact xG21B. To mitigate this issue, upgrade to SE Firmware version 2.2.6 or later.
Scores
CVSS v3
2.0
EPSS
0.0012
EPSS Percentile
30.9%
Attack Vector
PHYSICAL
CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-754
Status
published
Products (1)
silabs.com/SE Firmware
< 2.2.5
Published
Aug 29, 2024
Tracked Since
Feb 18, 2026