CVE-2026-31738
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
36/100
Published: 2026-05-01
Modified: 2026-11-11
First seen: 2026-11-06
Status: active
Attack Surface
Low Complexity
No Interaction
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
Description
In the Linux kernel, the following vulnerability has been resolved: vxlan: validate ND option lengths in vxlan_na_create vxlan_na_create() walks ND options according to option-provided lengths. A malformed option can make the parser advance beyond the computed option span or use a too-short source LLADDR option payload. Validate option lengths against the remaining NS option area before advancing, and only read source LLADDR when the option is large enough for an Ethernet address.
Affected Software (22)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | 4b29dba9c085a4fb79058fb1c45a2f6257ca3dfa < 901c1dd3bab2955d7e664f914c374c8c3ac2b958 |
| Linux | Linux | 4b29dba9c085a4fb79058fb1c45a2f6257ca3dfa < e476745917a1e288eb15e7ff49d286a86a4861d3 |
| Linux | Linux | 4b29dba9c085a4fb79058fb1c45a2f6257ca3dfa < 2029712fb2c87e9a8c75094906f2ee29bf08c500 |
| Linux | Linux | 4b29dba9c085a4fb79058fb1c45a2f6257ca3dfa < 602596c69a70e50d9ab8c6ae0290a01f88229dd7 |
| Linux | Linux | 4b29dba9c085a4fb79058fb1c45a2f6257ca3dfa < de20d2e3b9179d132f5f5b44e490d7c916c6321b |
| Linux | Linux | 4b29dba9c085a4fb79058fb1c45a2f6257ca3dfa < eddfce70a6f3107d1679b0c2fcbeb96b593bd679 |
| Linux | Linux | 4b29dba9c085a4fb79058fb1c45a2f6257ca3dfa < b69c4236255bd8de16cd876e58c6f0867d1d78b1 |
| Linux | Linux | 4b29dba9c085a4fb79058fb1c45a2f6257ca3dfa < afa9a05e6c4971bd5586f1b304e14d61fb3d9385 |
| Linux | Linux | d8be18c52dbc94989f6d74637b731af39cd3d902 |
| Linux | Linux | 3927dace523706cc00f808520eaf2125dd7c07b5 |
| Linux | Linux | 3.12.18 < 3.13 |
| Linux | Linux | 3.13.10 < 3.14 |
| Linux | Linux | 3.14 |
| linux | linux_kernel | 3.12.18 – 3.13 |
| linux | linux_kernel | 3.14 |
| linux | linux_kernel | 3.14 |
| 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 |