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Vulnerability record · CVE-2021-1975 · published 12 November 2021

CVE-2021-1975: Qualcomm apq8009 firmware out-of-bounds write vulnerability

Qualcomm · Apq8009 Firmware

Possible heap overflow due to improper length check of domain while parsing the DNS response in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Voice & Music, Snapdragon Wearables

9.8 CVSS 3.1 Critical EPSS 0.87% · top 42.6% CWE-787 · Out-of-bounds write
9.8CVSS 3.1 base score, v2 10.0
0.87%EPSS exploitation probability, 30 days
NoNot in CISA KEV
150Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Possible heap overflow due to improper length check of domain while parsing the DNS response in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Voice & Music, Snapdragon Wearables

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

Affected products

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

References

LinkTags
https://www.qualcomm.com/company/product-security/bulletins/november-2021-bulletin Vendor Advisory
https://www.qualcomm.com/company/product-security/bulletins/november-2021-bulletin Vendor Advisory

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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-2021-1975), CISA KEV, FIRST EPSS (scores of 2026-10-06). This page is refreshed as NVD updates the record.