CVE-2023-4280

Unvalidated input in Silicon Labs TrustZone implementation leads to accessing Trusted memory region

State: Published
Severity: 9.3 Critical
Published: Jan 2, 2024
Updated: Jun 13, 2025
Reserved: Aug 9, 2023

Description

An unvalidated input in Silicon Labs TrustZone implementation in v4.3.x and earlier of the Gecko SDK allows an attacker to access the trusted region of memory from the untrusted region.

Scores

CVSS	Score	Vector	Source
3.1	9.3 Critical	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H	Silabs

Weaknesses

CWE-125 Out-of-bounds Read
CWE-787 Out-of-bounds Write

Affected Products

Product	Versions
GSDKsilabs.com	1.0 through 4.3.xAffected

References

https://github.com/SiliconLabs/gecko_sdk
https://community.silabs.com/069Vm0000004NinIAE

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