Out-of-bounds Read in Silabs Gecko Software Development Kit
CVE-2023-4020
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.006 (46.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 46.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Silabs Gecko Software Development Kit
- Silabs.com Gsdk — versions 1.0
Weakness classification (CWE)
References
- github.com/SiliconLabs/gecko_sdk/releases (Release Notes)
- community.silabs.com/069Vm0000004b95IAA (Permissions Required)
Frequently asked questions
- What is CVE-2023-4020?
- CVE-2023-4020 is a critical-severity vulnerability in Silabs Gecko Software Development Kit, classified under Out-of-bounds Read. CVSS score: 9.0/10. Published 2023-12-15.
- How severe is CVE-2023-4020?
- Critical severity. CVSS v3 base score is 9.0 out of 10.