CVE-2020-15532

Name: CVE-2020-15532
Creator: NVD / NIST
Published: 2020-08-20T01:17:12.757+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 1.18%

Last modified Jun 17, 2026

CVE-2020-15532 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Silicon Labs Bluetooth Low Energy SDK before 2.13.3 has a buffer overflow via packet data. This is an over-the-air denial of service vulnerability in Bluetooth LE in EFR32 SoCs and associated modules running Bluetooth SDK, supporting Central or Observer roles.. EPSS estimates a 1.18% chance of exploitation in the next 30 days.

Description

Silicon Labs Bluetooth Low Energy SDK before 2.13.3 has a buffer overflow via packet data. This is an over-the-air denial of service vulnerability in Bluetooth LE in EFR32 SoCs and associated modules running Bluetooth SDK, supporting Central or Observer roles.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

1.18%

63.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-120

Affected Software

Vendor	Product	Versions
Silabs	Bluetooth Low Energy Software Development Kit	< 2.13.3.0

References

https://github.com/darkmentorllc/jackbnimble/blob/master/host/pocs/silabs_efr32_extadv_dos.pyExploit, Third Party Advisory
https://github.com/darkmentorllc/publications/tree/master/2020/TI_SILABS_BLE_RCEsThird Party Advisory
https://www.blackhat.com/us-20/briefings/schedule/#finding-new-bluetooth-low-energy-exploits-via-reverse-engineering-multiple-vendors-firmwares-19655Third Party Advisory
https://github.com/darkmentorllc/jackbnimble/blob/master/host/pocs/silabs_efr32_extadv_dos.pyExploit, Third Party Advisory
https://github.com/darkmentorllc/publications/tree/master/2020/TI_SILABS_BLE_RCEsThird Party Advisory
https://www.blackhat.com/us-20/briefings/schedule/#finding-new-bluetooth-low-energy-exploits-via-reverse-engineering-multiple-vendors-firmwares-19655Third Party Advisory

Timeline

Published: Aug 20, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-15532?

How severe is CVE-2020-15532?

CVE-2020-15532 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.18% probability of exploitation in the next 30 days.

How do I fix CVE-2020-15532?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-15532?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST