CVE-2023-4280
Unvalidated input in Silicon Labs TrustZone implementation leads to accessing Trusted memory region
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.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Unvalidated input in Silicon Labs TrustZone implementation leads to accessing Trusted memory region
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.
- Record
CVE-2023-4280- CVSS 3.1
- 9.3 Critical
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-125, CWE-787
- Updated
- 2026-11-02
EUVDEUVD-2023-54151
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.
- Record
EUVD-2023-54151- CVSS 3.1
- 9.3 Critical
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-3rwq-pxmh-pw55
An unvalidated input in Silicon Labs TrustZone implementation in v4.3.x and earlier of the Gecko...
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.
- Record
GHSA-3rwq-pxmh-pw55- CVSS 3.1
- 9.3 Critical
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-125
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2023-4280- CVSS 3.1
- 9.3 Critical
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H - CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-125, CWE-787
- Updated
- 2026-11-02
OSV
Unvalidated input in Silicon Labs TrustZone implementation leads to accessing Trusted memory region
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.
- Record
CVE-2023-4280- CVSS 3.1
- 9.3 Critical
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-125, CWE-787
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-4280 is a critical vulnerability (CVSS 9.3) in Silabs Gecko Software Development Kit, published January 2, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.40%, the 35th percentile. No source names a fixed version.