CVE-2023-4020
Last modified
CVE-2023-4020 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. An unvalidated input in a library function responsible for communicating between secure and non-secure memory in Silicon Labs TrustZone implementation allows reading/writing of memory in the secure region of memory from the non-secure region of memory.. EPSS estimates a 0.57% chance of exploitation in the next 30 days.
Description
An unvalidated input in a library function responsible for communicating between secure and non-secure memory in Silicon Labs TrustZone implementation allows reading/writing of memory in the secure region of memory from the non-secure region of memory.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Silabs | Gecko Software Development Kit | >= 1.0.0, < 4.4.0 |
References
- https://community.silabs.com/069Vm0000004b95IAAPermissions Required
- https://github.com/SiliconLabs/gecko_sdk/releasesRelease Notes
- https://community.silabs.com/069Vm0000004b95IAAPermissions Required
- https://github.com/SiliconLabs/gecko_sdk/releasesRelease Notes
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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