๐Ÿ›ก๏ธ CVE-2026-43040
๐ŸŸ  CVSS 7.1 โ€” High โœ… No Known Exploit CWE-909 NVD
7.1
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

In the Linux kernel, the following vulnerability has been resolved: net: ipv6: ndisc: fix ndisc_ra_useropt to initialize nduseropt_padX fields to zero to prevent an info-leak When processing Router Advertisements with user options the kernel builds an RTM_NEWNDUSEROPT netlink message. The nduseroptmsg struct has three padding fields that are never zeroed and can leak kernel data The fix is simple, just zeroes the padding fields.

Details

Severity HIGH
CVSS Score 7.1
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE CWE-909
Public Exploit โœ… No
Source NVD
Published 2026-05-01
Updated 2026-06-02
Modified 2026-05-08

Affected Packages

Software From version Fixed in
linux-kernel โ€” โ€”
unknown โ€” โ€”

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