What is CVE-2021-35134?

CVE-2021-35134 is a high-severity vulnerability in Qualcomm Qca6391, classified under Incorrect Calculation of Buffer Size. CVSS score: 8.4/10. Published 2022-09-02.

How severe is CVE-2021-35134?

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

Vulnerability in Qualcomm Qca6391

CVE-2021-35134

Due to insufficient validation of ELF headers, an Incorrect Calculation of Buffer Size can occur in Boot leading to memory corruption in Snapdragon Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile

Published 2022-09-02 · 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: 0.001 (2.2th percentile), scored 2026-10-23.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 2nd percentile — 2.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-131 — Incorrect Calculation of Buffer Size

References

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

Frequently asked questions

What is CVE-2021-35134?: CVE-2021-35134 is a high-severity vulnerability in Qualcomm Qca6391, classified under Incorrect Calculation of Buffer Size. CVSS score: 8.4/10. Published 2022-09-02.
How severe is CVE-2021-35134?: High severity. CVSS v3 base score is 8.4 out of 10.