Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: bridge: br_nd_send: validate ND option lengths br_nd_send() 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.15, < 5.10.253 |
References
- https://git.kernel.org/stable/c/259466f76f5a2148aff11134e68f4b4c6d52725bPatch
- https://git.kernel.org/stable/c/82a42eceec7c6bdb0e0da94c0542a173b7ea57f2Patch
- https://git.kernel.org/stable/c/837392a38445729c22e03d3abcf33f07763efd85Patch
- https://git.kernel.org/stable/c/850837965af15707fd3142c1cf3c5bfaf022299bPatch
- https://git.kernel.org/stable/c/c49b9256bbacb6a135654aebd12e4c0e87166b7cPatch
- https://git.kernel.org/stable/c/e0bfd6d4dc77ab345b6c65eef0cfe9b2f69085aaPatch
- https://git.kernel.org/stable/c/e71303a9190496136e240c4f2872b7b0b16027a7Patch
- https://git.kernel.org/stable/c/ee02d8991fd7bd86ed6ebd0deb4aab53feb0e43aPatch
FAQ
What is CVE-2026-31752?
CVE-2026-31752 is a vulnerability with a CVSS score of 5.5 (MEDIUM). In the Linux kernel, the following vulnerability has been resolved: bridge: br_nd_send: validate ND option lengths br_nd_send() walks ND options according to option-provided lengths. A malformed opt...
How severe is CVE-2026-31752?
CVE-2026-31752 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-31752?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.