What is CVE-2021-30309?

CVE-2021-30309 is a high-severity vulnerability in Qualcomm Mdm9650, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.8/10. Published 2022-02-11.

How severe is CVE-2021-30309?

High severity. CVSS v3 base score is 7.8 out of 10.

Is CVE-2021-30309 known to be exploited?

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

Buffer overflow in Qualcomm Mdm9650

CVE-2021-30309

Improper size validation of QXDM commands can lead to memory corruption in Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile

Vulnerability class: Buffer Overflow

EPSS: 0.001 (4.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

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

Public proof-of-concept exploits

xmpf/qualcomm-bulletins

References

product-security@qualcomm.com (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2021-30309?: CVE-2021-30309 is a high-severity vulnerability in Qualcomm Mdm9650, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.8/10. Published 2022-02-11.
How severe is CVE-2021-30309?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2021-30309 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.