What is CVE-2021-1965?

CVE-2021-1965 is a critical-severity vulnerability in Qualcomm Aqt1000, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2021-07-13.

How severe is CVE-2021-1965?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2021-1965 known to be exploited?

19 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Qualcomm Aqt1000

CVE-2021-1965

Possible buffer overflow due to lack of parameter length check during MBSSID scan IE parse in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Mobile, Snapdragon Wired Infrastructure and Networking

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

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

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.030 (86.9th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 86.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.030 · newest: 0.030 · change: 0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

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

Frequently asked questions

What is CVE-2021-1965?: CVE-2021-1965 is a critical-severity vulnerability in Qualcomm Aqt1000, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2021-07-13.
How severe is CVE-2021-1965?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2021-1965 known to be exploited?: 19 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.