Incorrect buffer parsing in Bluetooth LE sample code may lead to buffer overflow
Priority LOW 36CWE-125Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
Summary
A potential buffer overflow exists in the Bluetooth LE HCI CPC sample application in the Gecko SDK which may result in a denial of service or remote code execution
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00614 49th percentileScored 2026-11-07
Fix Fixed GSDK (silabs.com): 4.4.0
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| silabs.com | GSDK | 1.0 to before 4.4.0 | 4.4.0 | Patch available | CNA |
- GSDK Vendorsilabs.com Affected 1.0 to before 4.4.0 Fixed in 4.4.0 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:silabs:gecko_software_development_kit:*:*:*:*:*:*:*:* | before 4.4.0 | Vulnerable | silabs.com |
- cpe:2.3:a:silabs:gecko_software_development_kit:*:*:*:*:*:*:*:* Versions before 4.4.0 Vulnerable ·silabs.com
Remediation
- Fix · CNA GSDK (silabs.com) Fixed in 4.4.0
Timeline
- 2026-10-02 Threatist record created from CVE-2023-6387
- 2026-10-03 Alias added: GHSA-48gx-pf5r-9pp3
References
More silabs.com Gecko Software Development Kit vulnerabilities
- TI-2023-24288 Heap-based buffer overflow in silabs.com Gecko Platform CVSS 3.1CRITICAL 10.0
- TI-2023-14952 Memory corruption in silabs.com Gecko Platform CVSS 3.1CRITICAL 9.8
- TI-2023-12925 Memory corruption in silabs.com Gecko Platform CVSS 3.1CRITICAL 9.8
- TI-2023-12476 Heap-based buffer overflow in silabs.com Gecko Platform CVSS 3.1CRITICAL 9.8
- TI-2023-12937 Memory corruption in silabs.com Gecko Platform CVSS 3.1CRITICAL 9.8
- TI-2023-10642 Heap-based buffer overflow in silabs.com Gecko Platform CVSS 3.1CRITICAL 9.8
Sources
- CVE-2023-6387 · CVE Program
- CVE-2023-6387 · NVD
- FIRST EPSS
- GHSA-48gx-pf5r-9pp3 · GitHub Advisory Database · CC BY 4.0
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