CVE-2025-21444 HIGH

CVE-2025-21444: Buffer Copy Without Checking Size of Input (`Classic Buffer Overflow`) in Data HLOS - QX

Vendor Qualcomm, Inc.
Product Snapdragon
Weakness CWE-120
Published July 8, 2025
Last update February 26, 2026

CVSS base score

7.8/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

Memory corruption while copying the result to the transmission queue in EMAC.

Key dates

02Disclosure timeline

July 8, 2025 CVE published
February 26, 2026 Record updated