What is CVE-2021-35103?

CVE-2021-35103 is a high-severity vulnerability in Qualcomm Ar8035, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2022-04-01.

How severe is CVE-2021-35103?

High severity. CVSS v3 base score is 7.8 out of 10.

Buffer overflow in Qualcomm Ar8035

CVE-2021-35103

Possible out of bound write due to improper validation of number of timer values received from firmware while syncing timers in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking

Vulnerability class: Buffer Overflow

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

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (8.6th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 9th percentile — 8.6% 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

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

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

Frequently asked questions

What is CVE-2021-35103?: CVE-2021-35103 is a high-severity vulnerability in Qualcomm Ar8035, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2022-04-01.
How severe is CVE-2021-35103?: High severity. CVSS v3 base score is 7.8 out of 10.