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Vulnerability record · CVE-2020-11156 · published 2 November 2020

CVE-2020-11156: Qualcomm qca6390 firmware improper input validation vulnerability

Qualcomm · Qca6390 Firmware

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

8.1 CVSS 3.1 High EPSS 0.42% · top 65.3% CWE-20 · Improper input validationCWE-125 · Out-of-bounds read
8.1CVSS 3.1 base score, v2 4.8
0.42%EPSS exploitation probability, 30 days
NoNot in CISA KEV
8Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

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

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

Affected products

8 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.qualcomm.com/company/product-security/bulletins/october-2020-bulletin Broken Link
https://www.qualcomm.com/company/product-security/bulletins/october-2020-security-bulletin Vendor Advisory
https://www.qualcomm.com/company/product-security/bulletins/october-2020-bulletin Broken Link

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2020-11156), CISA KEV, FIRST EPSS (scores of 2026-10-11). This page is refreshed as NVD updates the record.