What is CVE-2021-1887?

CVE-2021-1887 is a high-severity vulnerability in Qualcomm Ar7420, classified under Reachable Assertion. CVSS score: 7.5/10. Published 2021-07-13.

How severe is CVE-2021-1887?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Qualcomm Ar7420

CVE-2021-1887

An assertion can be reached in the WLAN subsystem while using the Wi-Fi Fine Timing Measurement protocol in Snapdragon Wired Infrastructure and Networking

Published 2021-07-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.006 (45.9th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 45.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-617 — Reachable Assertion

References

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

Frequently asked questions

What is CVE-2021-1887?: CVE-2021-1887 is a high-severity vulnerability in Qualcomm Ar7420, classified under Reachable Assertion. CVSS score: 7.5/10. Published 2021-07-13.
How severe is CVE-2021-1887?: High severity. CVSS v3 base score is 7.5 out of 10.