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Vulnerability record · CVE-2021-1939 · published 17 September 2021

CVE-2021-1939: Qualcomm apq8009 firmware null pointer dereference vulnerability

Qualcomm · Apq8009 Firmware

Null pointer dereference occurs due to improper validation when the preemption feature enablement is toggled in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Wearables

5.5 CVSS 3.1 Medium EPSS 0.14% · top 97.2% CWE-476 · NULL pointer dereference
5.5CVSS 3.1 base score, v2 4.9
0.14%EPSS exploitation probability, 30 days
NoNot in CISA KEV
108Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Null pointer dereference occurs due to improper validation when the preemption feature enablement is toggled in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Wearables

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

Affected products

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

References

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

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

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Source: NIST National Vulnerability Database (record CVE-2021-1939), CISA KEV, FIRST EPSS (scores of 2026-10-05). This page is refreshed as NVD updates the record.