CVE-2026-43040
HIGH
MEDIUM
Priority: 0.01
BB Relevance:
39/100
Published: 2026-05-01
Modified: 2026-11-06
First seen: 2026-11-06
Status: active
Attack Surface
Low Complexity
No Interaction
Conf. Impact
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
High
I:
None
A:
High
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.
Weakness Classification (1)
Affected Software (16)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | 31910575a9de61e78065e93846e8e7a4894a18bf < 1da9023f6b071a38e5430ffbce4b70b2b1ac4f9c |
| Linux | Linux | 31910575a9de61e78065e93846e8e7a4894a18bf < 2fe4d0ba690a69ad6ae9f7ab9bdc96e02610b648 |
| Linux | Linux | 31910575a9de61e78065e93846e8e7a4894a18bf < 11d7fe97421cfc81549940c20ed5ac9472d6db05 |
| Linux | Linux | 31910575a9de61e78065e93846e8e7a4894a18bf < 7f56d87e527bb5a13c3e8b0d5840cb6332822f6d |
| Linux | Linux | 31910575a9de61e78065e93846e8e7a4894a18bf < 4f810c686fde509d1cdaa706322d9d2531f8f1a4 |
| Linux | Linux | 31910575a9de61e78065e93846e8e7a4894a18bf < b485eef3d97b7aae55ce669b6de555ec81f3d21c |
| Linux | Linux | 31910575a9de61e78065e93846e8e7a4894a18bf < ef3645606e4a635d5062a492f22b7f490852ee67 |
| Linux | Linux | 31910575a9de61e78065e93846e8e7a4894a18bf < ae05340ccaa9d347fe85415609e075545bec589f |
| Linux | Linux | 2.6.24 |
| linux | linux_kernel | 2.6.24 – 5.10.253 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |