What is CVE-2021-30342?

CVE-2021-30342 is a critical-severity vulnerability in Qualcomm Apq8009w, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 9.1/10. Published 2022-06-14.

How severe is CVE-2021-30342?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Vulnerability in Qualcomm Apq8009w

CVE-2021-30342

Improper integrity check can lead to race condition between tasks PDCP and RRC? after a valid RRC Command packet has been received in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Voice & Music, Snapdragon Wearables

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

Published 2022-06-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.005 (39.4th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 39.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · 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/april-2022-bulletin (Vendor Advisory)

Frequently asked questions

What is CVE-2021-30342?: CVE-2021-30342 is a critical-severity vulnerability in Qualcomm Apq8009w, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 9.1/10. Published 2022-06-14.
How severe is CVE-2021-30342?: Critical severity. CVSS v3 base score is 9.1 out of 10.