CVE-2025-21455 — HIGH (7.8)

Vulnerability Description

Memory corruption while submitting blob data to kernel space though IOCTL.

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

Vendor	Product	Versions
Qualcomm	Fastconnect 6800 Firmware	-
Qualcomm	Fastconnect 6800	-
Qualcomm	Fastconnect 6900 Firmware	-
Qualcomm	Fastconnect 6900	-
Qualcomm	Fastconnect 7800 Firmware	-
Qualcomm	Fastconnect 7800	-
Qualcomm	Qca6391 Firmware	-
Qualcomm	Qca6391	-
Qualcomm	Qca6426 Firmware	-
Qualcomm	Qca6426	-
Qualcomm	Qca6436 Firmware	-
Qualcomm	Qca6436	-
Qualcomm	Qsm8250 Firmware	-
Qualcomm	Qsm8250	-
Qualcomm	Sd865 5G Firmware	-
Qualcomm	Sd865 5G	-
Qualcomm	Sdx55 Firmware	-
Qualcomm	Sdx55	-
Qualcomm	Snapdragon 8 Gen 1 Mobile Platform Firmware	-
Qualcomm	Snapdragon 8 Gen 1 Mobile Platform	-

Related Weaknesses (CWE)

CWE-367

References

https://docs.qualcomm.com/product/publicresources/securitybulletin/august-2025-bVendor Advisory

FAQ

What is CVE-2025-21455?

CVE-2025-21455 is a vulnerability with a CVSS score of 7.8 (HIGH). Memory corruption while submitting blob data to kernel space though IOCTL.

How severe is CVE-2025-21455?

CVE-2025-21455 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-2025-21455?

Check the references section above for vendor advisories and patch information. Affected products include: Qualcomm Fastconnect 6800 Firmware, Qualcomm Fastconnect 6800, Qualcomm Fastconnect 6900 Firmware, Qualcomm Fastconnect 6900, Qualcomm Fastconnect 7800 Firmware.