CVE-2026-31752 (GCVE-0-2026-31752)
Vulnerability from cvelistv5
Published
2026-05-01 14:14
Modified
2026-05-01 14:14
Severity ?
VLAI Severity ?
EPSS score ?
Summary
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.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: ed842faeb2bd49256f00485402f3113205f91d30 Version: ed842faeb2bd49256f00485402f3113205f91d30 Version: ed842faeb2bd49256f00485402f3113205f91d30 Version: ed842faeb2bd49256f00485402f3113205f91d30 Version: ed842faeb2bd49256f00485402f3113205f91d30 Version: ed842faeb2bd49256f00485402f3113205f91d30 Version: ed842faeb2bd49256f00485402f3113205f91d30 Version: ed842faeb2bd49256f00485402f3113205f91d30 |
||
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"descriptions": [
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbridge: br_nd_send: validate ND option lengths\n\nbr_nd_send() walks ND options according to option-provided lengths.\nA malformed option can make the parser advance beyond the computed\noption span or use a too-short source LLADDR option payload.\n\nValidate option lengths against the remaining NS option area before\nadvancing, and only read source LLADDR when the option is large enough\nfor an Ethernet address."
}
],
"providerMetadata": {
"dateUpdated": "2026-05-01T14:14:44.298Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
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"url": "https://git.kernel.org/stable/c/82a42eceec7c6bdb0e0da94c0542a173b7ea57f2"
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"url": "https://git.kernel.org/stable/c/259466f76f5a2148aff11134e68f4b4c6d52725b"
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{
"url": "https://git.kernel.org/stable/c/850837965af15707fd3142c1cf3c5bfaf022299b"
}
],
"title": "bridge: br_nd_send: validate ND option lengths",
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"cveId": "CVE-2026-31752",
"datePublished": "2026-05-01T14:14:44.298Z",
"dateReserved": "2026-03-09T15:48:24.139Z",
"dateUpdated": "2026-05-01T14:14:44.298Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
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}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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