Heap-based buffer overflow in Linux kernel - CVE-2026-98025
Published: September 28, 2026
Vulnerability identifier: #VU152442
CSH Severity: Low
CVSS v4: 0 [CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-98025
CWE-ID: CWE-122
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows an attacker with physical access to corrupt memory.
The vulnerability exists due to a heap-based buffer overflow in the cx82310_rx_fixup function of the cx82310_eth USB network driver when processing a crafted USB network receive URB beginning with the 0xffff reboot sentinel. An attacker with physical access can send a crafted USB network receive URB to corrupt memory.
Affected software
Linux kernel
How to mitigate CVE-2026-98025
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3