What is CVE-2025-47394?

CVE-2025-47394 is a high-severity vulnerability in Qualcomm Fastconnect_6200, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.8/10. Published 2026-01-07.

How severe is CVE-2025-47394?

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

Buffer overflow in Qualcomm Fastconnect_6200

CVE-2025-47394

Memory corruption when copying overlapping buffers during memory operations due to incorrect offset calculations.

Vulnerability class: Buffer Overflow

EPSS: 0.001 (0.1th 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

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
Qualcomm Qcs610
Qualcomm Qcs610_firmware

Weakness classification (CWE)

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

References

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

Frequently asked questions

What is CVE-2025-47394?: CVE-2025-47394 is a high-severity vulnerability in Qualcomm Fastconnect_6200, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.8/10. Published 2026-01-07.
How severe is CVE-2025-47394?: High severity. CVSS v3 base score is 7.8 out of 10.