What is CVE-2023-3488?

CVE-2023-3488 is a low-severity vulnerability in Silabs Gecko Software Development Kit, classified under Use of Uninitialized Resource. CVSS score: 3.8/10. Published 2023-07-28.

How severe is CVE-2023-3488?

Low severity. CVSS v3 base score is 3.8 out of 10.

Vulnerability in Silabs Gecko Software Development Kit

CVE-2023-3488

Uninitialized buffer in GBL parser in Silicon Labs GSDK v4.3.0 and earlier allows attacker to leak data from Secure stack via malformed GBL file.

Published 2023-07-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 3.8 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (15.7th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 15.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Silabs Gecko Software Development Kit
Silabs.com Gecko Bootloader — versions 0

Weakness classification (CWE)

CWE-908 — Use of Uninitialized Resource

References

github.com/SiliconLabs/gecko_sdk/releases (Release Notes, patch)
community.silabs.com/sfc/servlet.shepherd/document/download/0698Y00000Wi3HwQAJ (Permissions Required, vendor-advisory)

Frequently asked questions

What is CVE-2023-3488?: CVE-2023-3488 is a low-severity vulnerability in Silabs Gecko Software Development Kit, classified under Use of Uninitialized Resource. CVSS score: 3.8/10. Published 2023-07-28.
How severe is CVE-2023-3488?: Low severity. CVSS v3 base score is 3.8 out of 10.