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Vulnerability record · CVE-2021-1974 · published 9 September 2021

CVE-2021-1974: Qualcomm aqt1000 firmware out-of-bounds read vulnerability

Qualcomm · Aqt1000 Firmware

Possible buffer over read due to lack of alignment between map or unmap length of IPA SMMU and WLAN SMMU in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking

7.5 CVSS 3.1 High EPSS 0.59% · top 53.8% CWE-125 · Out-of-bounds read
7.5CVSS 3.1 base score, v2 5.0
0.59%EPSS exploitation probability, 30 days
NoNot in CISA KEV
150Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Possible buffer over read due to lack of alignment between map or unmap length of IPA SMMU and WLAN SMMU in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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/september-2021-bulletin PatchVendor Advisory
https://www.qualcomm.com/company/product-security/bulletins/september-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-2021-1974), CISA KEV, FIRST EPSS (scores of 2026-10-04). This page is refreshed as NVD updates the record.