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HIGH · 7.8

CVE-2025-21456

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

Vulnerability Description

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

CVSS Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
QualcommAr8035 Firmware-
QualcommAr8035-
QualcommC-V2X 9150 Firmware-
QualcommC-V2X 9150-
QualcommFastconnect 6900 Firmware-
QualcommFastconnect 6900-
QualcommFastconnect 7800 Firmware-
QualcommFastconnect 7800-
QualcommQam8255P Firmware-
QualcommQam8255P-
QualcommQam8295P Firmware-
QualcommQam8295P-
QualcommQam8650P Firmware-
QualcommQam8650P-
QualcommQam8775P Firmware-
QualcommQam8775P-
QualcommQca6174A Firmware-
QualcommQca6174A-
QualcommQca6574Au Firmware-
QualcommQca6574Au-

Related Weaknesses (CWE)

CWE-416

References

FAQ

What is CVE-2025-21456?

CVE-2025-21456 is a vulnerability with a CVSS score of 7.8 (HIGH). Memory corruption while processing IOCTL command when multiple threads are called to map/unmap buffer concurrently.

How severe is CVE-2025-21456?

CVE-2025-21456 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-21456?

Check the references section above for vendor advisories and patch information. Affected products include: Qualcomm Ar8035 Firmware, Qualcomm Ar8035, Qualcomm C-V2X 9150 Firmware, Qualcomm C-V2X 9150, Qualcomm Fastconnect 6900 Firmware.