What is CVE-2020-11305?

CVE-2020-11305 is a medium-severity vulnerability in Qualcomm Apq8009, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.8/10. Published 2021-03-17.

How severe is CVE-2020-11305?

Medium severity. CVSS v3 base score is 6.8 out of 10.

Buffer overflow in Qualcomm Apq8009

CVE-2020-11305

Integer overflow in boot due to improper length check on arguments received in Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Voice & Music

Vulnerability class: Buffer Overflow

Published 2021-03-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (10.4th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 10th percentile — 10.4% 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-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

References

www.qualcomm.com/company/product-security/bulletins/march-2021-bulletin (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2020-11305?: CVE-2020-11305 is a medium-severity vulnerability in Qualcomm Apq8009, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.8/10. Published 2021-03-17.
How severe is CVE-2020-11305?: Medium severity. CVSS v3 base score is 6.8 out of 10.