// For flags

CVE-2025-21424

Use After Free in NPU

Severity Score

7.8
*CVSS v3.1

Exploit Likelihood

< 1%
*EPSS

Affected Versions

17
*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track*
*SSVC
Descriptions

Memory corruption while calling the NPU driver APIs concurrently.

msm_npu has a race condition between npu_host_unload_network and npu_host_exec_network_v2 that leads to memory corruption.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
Single
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Track*
Exploitation
None
Automatable
No
Tech. Impact
Total
* Organization's Worst-case Scenario
Timeline
  • 2024-12-18 CVE Reserved
  • 2025-03-03 CVE Published
  • 2025-03-05 CVE Updated
  • 2025-03-21 First Exploit
  • 2025-04-04 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-416: Use After Free
CAPEC
Affected Vendors, Products, and Versions (17)