What is CVE-2021-30327?

CVE-2021-30327 is a high-severity vulnerability in Qualcomm Apq8097, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2022-06-14.

How severe is CVE-2021-30327?

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

Is CVE-2021-30327 known to be exploited?

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

Buffer overflow in Qualcomm Apq8097

CVE-2021-30327

Buffer overflow in sahara protocol while processing commands leads to overwrite of secure configuration data in Snapdragon Mobile, Snapdragon Compute, Snapdragon Auto, Snapdragon IOT, Snapdragon Connectivity, Snapdragon Voice & Music

Vulnerability class: Buffer Overflow

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

CVSS v3 metric

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

EPSS exploit prediction

EPSS: 0.002 (9.2th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 9th percentile — 9.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

Public proof-of-concept exploits

References

www.qualcomm.com/company/product-security/bulletins/april-2022-bulletin (Vendor Advisory)

Frequently asked questions

What is CVE-2021-30327?: CVE-2021-30327 is a high-severity vulnerability in Qualcomm Apq8097, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2022-06-14.
How severe is CVE-2021-30327?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2021-30327 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.