Silicon Labs Bluetooth Low Energy SDK before 2.13.3 has a buffer overflow via packet data.
Priority MEDIUM 44CWE-120Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.
Summary
Silicon Labs Bluetooth Low Energy SDK before 2.13.3 has a buffer overflow via packet data. This is an over-the-air remote code execution vulnerability in Bluetooth LE in EFR32 SoCs and associated modules running Bluetooth SDK, supporting Central or Observer roles.
Why it matters now
EPSS 0.03158 88th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:silabs:bluetooth_low_energy_software_development_kit:*:*:*:*:*:*:*:* | before 2.13.3.0 | Vulnerable | silabs.com |
- cpe:2.3:a:silabs:bluetooth_low_energy_software_development_kit:*:*:*:*:*:*:*:* Versions before 2.13.3.0 Vulnerable ·silabs.com
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-15531
- 2026-10-03 Alias added: GHSA-7x2r-4hx9-vpj8
References
Exploit 2
More silabs.com Bluetooth Low Energy Software Development Kit vulnerabilities
- TI-2020-12229 Silicon Labs Bluetooth Low Energy SDK before 2.13.3 has a buffer overflow via packet data. CVSS 3.1MEDIUM 6.5
- TI-2023-02511 Connection update while closing connection may lead to denial-of-service CVSS 3.1MEDIUM 6.5
- TI-2023-21715 Loss of confidentiality due to potential race condition in Bluetooth controller Connection_Handle reuse CVSS 3.1LOW 3.1
Sources
- CVE-2020-15531 · CVE Program
- CVE-2020-15531 · NVD
- FIRST EPSS
- GHSA-7x2r-4hx9-vpj8 · GitHub Advisory Database · CC BY 4.0
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