What is CVE-2025-21452?

CVE-2025-21452 is a high-severity vulnerability in Qualcomm 315 5g Iot Modem, classified under Reachable Assertion. CVSS score: 7.5/10. Published 2025-08-06.

How severe is CVE-2025-21452?

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

Vulnerability in Qualcomm 315 5g Iot Modem

CVE-2025-21452

Transient DOS while processing a random-access response (RAR) with an invalid PDU length on LTE network.

EPSS: 0.002 (11.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

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

Affected products

Qualcomm 315_5g_iot_modem
Qualcomm 315_5g_iot_modem_firmware
Qualcomm Ar8035
Qualcomm Ar8035_firmware
Qualcomm Fastconnect_6200
Qualcomm Fastconnect_6200_firmware
Qualcomm Fastconnect_6700
Qualcomm Fastconnect_6700_firmware
Qualcomm Fastconnect_6800
Qualcomm Fastconnect_6800_firmware

Weakness classification (CWE)

CWE-617 — Reachable Assertion

References

product-security@qualcomm.com (Vendor Advisory)

Frequently asked questions

What is CVE-2025-21452?: CVE-2025-21452 is a high-severity vulnerability in Qualcomm 315 5g Iot Modem, classified under Reachable Assertion. CVSS score: 7.5/10. Published 2025-08-06.
How severe is CVE-2025-21452?: High severity. CVSS v3 base score is 7.5 out of 10.