CVE-2020-11156

Name: CVE-2020-11156
Creator: NVD / NIST
Published: 2020-11-02T07:15:13.733+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.1/10EPSS 0.42%

Last modified Jun 17, 2026

CVE-2020-11156 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. u'Buffer over-read issue in Bluetooth estack due to lack of check for invalid length of L2cap packet received from peer device.' in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wired Infrastructure and Networking in QCA6390, QCN7605, QCS404, SA415M, SA515M, SC8180X, SDX55, SM8250. EPSS estimates a 0.42% chance of exploitation in the next 30 days.

Description

u'Buffer over-read issue in Bluetooth estack due to lack of check for invalid length of L2cap packet received from peer device.' in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wired Infrastructure and Networking in QCA6390, QCN7605, QCS404, SA415M, SA515M, SC8180X, SDX55, SM8250

Metrics

CVSS 3.1

8.1/10

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

EPSS Probability

0.42%

33.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Qualcomm	Qca6390 Firmware	All versions
Qualcomm	Qcn7605 Firmware	All versions
Qualcomm	Qcs404 Firmware	All versions
Qualcomm	Sa415m Firmware	All versions
Qualcomm	Sa515m Firmware	All versions
Qualcomm	Sc8180x Firmware	All versions
Qualcomm	Sdx55 Firmware	All versions
Qualcomm	Sm8250 Firmware	All versions

References

Timeline

Published: Nov 2, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-11156?

How severe is CVE-2020-11156?

CVE-2020-11156 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 0.42% probability of exploitation in the next 30 days.

How do I fix CVE-2020-11156?

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-2020-11156?

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

Scan your code now

Source: NVD / NIST