CVE-2026-98495

high

Description

In the Linux kernel, the following vulnerability has been resolved: net: arp: terminate device name before lookup The ARP ioctl copies a user-provided struct arpreq into a stack object. Its arp_dev field may contain IFNAMSIZ bytes without a NUL terminator. Such input is passed to dev_get_by_name_rcu() or __dev_get_by_name(), where strcmp() can read past the end of the stack object when a matching alternative interface name exists. Terminate the field before the lookup to prevent the out-of-bounds read.

References

https://git.kernel.org/stable/c/d8b6529e80bcb4fb8177121404cbb3377acaebd2

https://git.kernel.org/stable/c/ba664d83638640cf454b65167339cbf20dfd6f10

https://git.kernel.org/stable/c/ae6d704dbf9542b0a0830ec91a2db4f30307e7d8

https://git.kernel.org/stable/c/7389757d88f54237951d7497d9c4dae7cc6d64be

https://git.kernel.org/stable/c/47107491b48ceef0a2faa7a010cfa961f211ef9f

https://git.kernel.org/stable/c/414bbad9928598904313299ac9e037a73f520be1

https://git.kernel.org/stable/c/35e716a70733472ede300540082d64c33bf3b4c9

https://git.kernel.org/stable/c/1b08c5c3ac27c9ff91c5309f4a32b4e91ce2263b

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-103735

Details

Source: Mitre, NVD

Published: 2026-10-18

Updated: 2026-10-19

Risk Information

CVSS v2

Base Score: 5.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 7.1

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

Severity: High

EPSS

EPSS: 0.0021