Buffer overflow in Linux kernel - CVE-2025-39918

 

Buffer overflow in Linux kernel - CVE-2025-39918

Published: October 1, 2025


Vulnerability identifier: #VU116251
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-39918
CWE-ID: CWE-119
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel

Detailed vulnerability description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to memory corruption within the mt76_txq_schedule_pending_wcid() and mt76_txq_schedule_pending() functions in drivers/net/wireless/mediatek/mt76/tx.c. A local user can perform a denial of service (DoS) attack.


How to mitigate CVE-2025-39918

Install update from vendor's repository.

Sources