What is CVE-2023-43521?

CVE-2023-43521 is a medium-severity vulnerability in Qualcomm Ar8035, classified under Use After Free. CVSS score: 6.7/10. Published 2024-05-06.

How severe is CVE-2023-43521?

Medium severity. CVSS v3 base score is 6.7 out of 10.

Use After Free in Qualcomm Ar8035

CVE-2023-43521

Memory corruption when multiple listeners are being registered with the same file descriptor.

Vulnerability class: Use-After-Free

Published 2024-05-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.001 (1.1th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 1.1% 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)

CWE-416 — Use After Free

References

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

Frequently asked questions

What is CVE-2023-43521?: CVE-2023-43521 is a medium-severity vulnerability in Qualcomm Ar8035, classified under Use After Free. CVSS score: 6.7/10. Published 2024-05-06.
How severe is CVE-2023-43521?: Medium severity. CVSS v3 base score is 6.7 out of 10.