What is CVE-2021-1957?

CVE-2021-1957 is a medium-severity vulnerability in Qualcomm Apq8017. CVSS score: 6.5/10. Published 2021-09-09.

How severe is CVE-2021-1957?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Qualcomm Apq8017

CVE-2021-1957

Improper Access Control when ACL link encryption is failed and ACL link is not disconnected during reconnection with paired device in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music

Published 2021-09-09 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.001 (3.5th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 3.5% 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

References

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

Frequently asked questions

What is CVE-2021-1957?: CVE-2021-1957 is a medium-severity vulnerability in Qualcomm Apq8017. CVSS score: 6.5/10. Published 2021-09-09.
How severe is CVE-2021-1957?: Medium severity. CVSS v3 base score is 6.5 out of 10.