What is CVE-2024-21478?

CVE-2024-21478 is a medium-severity vulnerability in Qualcomm Qam8255p, classified under Incorrect Type Conversion or Cast. CVSS score: 6.2/10. Published 2024-06-03.

How severe is CVE-2024-21478?

Medium severity. CVSS v3 base score is 6.2 out of 10.

NULL pointer dereference in Qualcomm Qam8255p

CVE-2024-21478

transient DOS when setting up a fence callback to free a KGSL memory entry object during DMA.

Published 2024-06-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.001 (0.6th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 0.6% 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

Weakness classification (CWE)

References

docs.qualcomm.com/product/publicresources/securitybulletin/june-2024-bulletin.h… (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2024-21478?: CVE-2024-21478 is a medium-severity vulnerability in Qualcomm Qam8255p, classified under Incorrect Type Conversion or Cast. CVSS score: 6.2/10. Published 2024-06-03.
How severe is CVE-2024-21478?: Medium severity. CVSS v3 base score is 6.2 out of 10.