What is CVE-2025-21450?

CVE-2025-21450 is a critical-severity vulnerability in Qualcomm Ar8035, classified under Improper Authentication. CVSS score: 9.1/10. Published 2025-07-08.

How severe is CVE-2025-21450?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Is CVE-2025-21450 known to be exploited?

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

Auth bypass in Qualcomm Ar8035

CVE-2025-21450

Cryptographic issue occurs due to use of insecure connection method while downloading.

Vulnerability class: Broken Authentication

EPSS: 0.003 (20.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Qualcomm Ar8035
Qualcomm Ar8035_firmware
Qualcomm Fastconnect_6200
Qualcomm Fastconnect_6200_firmware
Qualcomm Fastconnect_6700
Qualcomm Fastconnect_6700_firmware
Qualcomm Fastconnect_6900
Qualcomm Fastconnect_6900_firmware
Qualcomm Fastconnect_7800
Qualcomm Fastconnect_7800_firmware

Weakness classification (CWE)

CWE-287 — Improper Authentication
CWE-863 — Incorrect Authorization

Public proof-of-concept exploits

ARPSyndicate/cve-scores

References

product-security@qualcomm.com (Vendor Advisory)

Frequently asked questions

What is CVE-2025-21450?: CVE-2025-21450 is a critical-severity vulnerability in Qualcomm Ar8035, classified under Improper Authentication. CVSS score: 9.1/10. Published 2025-07-08.
How severe is CVE-2025-21450?: Critical severity. CVSS v3 base score is 9.1 out of 10.
Is CVE-2025-21450 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.