What’s Vulnerable › Vulnerabilities

CVE-2023-3488: Uninitialized variable in Gecko Bootloader can leak secure stack

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-07-28 · updated 2026-06-17
• Weakness: CWE-908

Description

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.

Affected products

• silabs.com Gecko Platform: through 4.3.0

References

• https://community.silabs.com/sfc/servlet.shepherd/document/download/0698Y00000Wi3HwQAJ?operationContext=S1
• https://github.com/SiliconLabs/gecko_sdk/releases
• https://community.silabs.com/sfc/servlet.shepherd/document/download/0698Y00000Wi3HwQAJ?operationContext=S1
• https://github.com/SiliconLabs/gecko_sdk/releases

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