SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2025-21456

Memory corruption while processing IOCTL command when multiple threads are called to map/unmap buffer concurrently.

HIGH 7.8EPSS 0.09%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.09%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Memory corruption while processing IOCTL command when multiple threads are called to map/unmap buffer concurrently.

CVSS 3.1
7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
0.09% probability · 0th percentile
CISA KEV
Not listed
Weakness
CWE-416
Affected
qualcomm/ar8035 firmware · qualcomm/c-v2x 9150 firmware · qualcomm/fastconnect 6900 firmware · qualcomm/fastconnect 7800 firmware · qualcomm/qam8255p firmware · qualcomm/qam8295p firmware · qualcomm/qam8650p firmware · qualcomm/qam8775p firmware · qualcomm/qca6174a firmware · qualcomm/qca6574au firmware · qualcomm/qca6584au firmware · qualcomm/qca6696 firmware · qualcomm/qca6698aq firmware · qualcomm/qca6797aq firmware · qualcomm/qca8081 firmware · qualcomm/qca8337 firmware · qualcomm/qcc710 firmware · qualcomm/qcn6224 firmware · qualcomm/qcn6274 firmware · qualcomm/qcs410 firmware · +40 more
Source
product-security@qualcomm.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.