What is CVE-2020-11230?

CVE-2020-11230 is a medium-severity vulnerability in Qualcomm Aqt1000, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 6.4/10. Published 2021-03-17.

How severe is CVE-2020-11230?

Medium severity. CVSS v3 base score is 6.4 out of 10.

Vulnerability in Qualcomm Aqt1000

CVE-2020-11230

Potential arbitrary memory corruption when the qseecom driver updates ion physical addresses in the buffer as it exposes a physical address to user land in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile

Vulnerability class: TOCTOU (Time-of-Check to Time-of-Use)

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

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.001 (2.5th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 3rd percentile — 2.5% 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-367 — Time-of-check Time-of-use (TOCTOU) Race Condition

References

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

Frequently asked questions

What is CVE-2020-11230?: CVE-2020-11230 is a medium-severity vulnerability in Qualcomm Aqt1000, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 6.4/10. Published 2021-03-17.
How severe is CVE-2020-11230?: Medium severity. CVSS v3 base score is 6.4 out of 10.