PT-2026-36457 · Linux+2 · Linux Kernel+2
CVE-2026-43040
·
Published
2026-03-25
·
Updated
2026-08-23
CVSS v3.1
7.1
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
An information leak exists when processing Router Advertisements with user options. The kernel constructs an 'RTM NEWNDUSEROPT' netlink message using the
nduseroptmsg struct, which contains three padding fields (nduseropt padX) that are not initialized to zero, potentially exposing kernel data.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Improper Initialization
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Related Identifiers
Affected Products
Linuxmint
Linux Kernel
Ubuntu