CVE-2025-47398
Published: 02 February 2026
Summary
CVE-2025-47398 is a high-severity Use After Free (CWE-416) vulnerability in Qualcomm Qcm6490 Firmware. Its CVSS base score is 7.8 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 0.7th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 SC-51 (Hardware-based Protection) and SI-16 (Memory Protection).
Deeper analysis
CVE-2025-47398 is a memory corruption vulnerability that occurs while deallocating graphics processing unit (GPU) memory buffers due to improper handling of memory pointers. It is classified under CWE-416 (Use After Free) and affects Qualcomm products, as documented in their security bulletin. The vulnerability received a CVSS v3.1 base score of 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) when published on 2026-02-02.
The vulnerability can be exploited by a local attacker with low privileges, requiring low complexity and no user interaction. Successful exploitation enables high-impact consequences, including unauthorized access to sensitive data (confidentiality), modification of system resources (integrity), and disruption of services (availability).
Qualcomm's February 2026 Security Bulletin provides details on mitigations and patches; practitioners should consult the advisory at https://docs.qualcomm.com/product/publicresources/securitybulletin/february-2026-bulletin.html for specific remediation steps.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-206610
Vulnerability details
Memory Corruption while deallocating graphics processing unit memory buffers due to improper handling of memory pointers.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Local use-after-free memory corruption in GPU driver directly enables privilege escalation via crafted deallocation of buffers.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly mitigates the use-after-free memory corruption vulnerability by requiring timely application of Qualcomm-provided patches.
Implements runtime memory safeguards such as address space layout randomization and data execution prevention to block exploitation of improper GPU memory pointer handling.
Uses hardware-based protections like memory tagging and pointer authentication to detect and prevent memory corruption during GPU buffer deallocation.