CVE-2026-31738None▾ SunlitIn 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 ad…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Nov 6.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.1%
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.
Linux >= 4b29dba9c085a4fb79058fb1c45a2f6257ca3dfa < 901c1dd3bab2955d7e664f914c374c8c3ac2b958Linux >= 4b29dba9c085a4fb79058fb1c45a2f6257ca3dfa < e476745917a1e288eb15e7ff49d286a86a4861d3Linux >= 4b29dba9c085a4fb79058fb1c45a2f6257ca3dfa < 2029712fb2c87e9a8c75094906f2ee29bf08c500Linux >= 4b29dba9c085a4fb79058fb1c45a2f6257ca3dfa < 602596c69a70e50d9ab8c6ae0290a01f88229dd7Linux >= 4b29dba9c085a4fb79058fb1c45a2f6257ca3dfa < de20d2e3b9179d132f5f5b44e490d7c916c6321bLinux >= 4b29dba9c085a4fb79058fb1c45a2f6257ca3dfa < eddfce70a6f3107d1679b0c2fcbeb96b593bd679Linux >= 4b29dba9c085a4fb79058fb1c45a2f6257ca3dfa < b69c4236255bd8de16cd876e58c6f0867d1d78b1Linux >= 4b29dba9c085a4fb79058fb1c45a2f6257ca3dfa < afa9a05e6c4971bd5586f1b304e14d61fb3d9385Linux d8be18c52dbc94989f6d74637b731af39cd3d902Linux 3927dace523706cc00f808520eaf2125dd7c07b5Linux >= 3.12.18 < 3.13Linux >= 3.13.10 < 3.14Linux 3.14Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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