What is CVE-2021-35089?

CVE-2021-35089 is a high-severity vulnerability in Qualcomm Qca6574au, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.4/10. Published 2022-04-01.

How severe is CVE-2021-35089?

High severity. CVSS v3 base score is 8.4 out of 10.

Buffer overflow in Qualcomm Qca6574au

CVE-2021-35089

Possible buffer overflow due to lack of input IB amount validation while processing the user command in Snapdragon Auto

Vulnerability class: Buffer Overflow

Published 2022-04-01 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (8.3th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 8th percentile — 8.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Qualcomm Qca6574au
Qualcomm Qca6574au Firmware
Qualcomm Qca6696
Qualcomm Qca6696 Firmware
Qualcomm Sa8155p
Qualcomm Sa8155p Firmware
Qualcomm, Inc. Snapdragon Auto — versions QCA6574AU, QCA6696, SA8155P

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

www.qualcomm.com/company/product-security/bulletins/march-2022-bulletin (Vendor Advisory)

Frequently asked questions

What is CVE-2021-35089?: CVE-2021-35089 is a high-severity vulnerability in Qualcomm Qca6574au, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.4/10. Published 2022-04-01.
How severe is CVE-2021-35089?: High severity. CVSS v3 base score is 8.4 out of 10.