CVE-2026-64412 (GCVE-0-2026-64412)
Vulnerability from cvelistv5
Published
2026-07-25 08:50
Modified
2026-08-17 04:55
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: ebtables: module names must be null-terminated
We need to explicitly check the length, else we may pass non-null
terminated string to request_module().
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: bcf4934288402be3464110109a4dae3bd6fb3e93 Version: bcf4934288402be3464110109a4dae3bd6fb3e93 Version: bcf4934288402be3464110109a4dae3bd6fb3e93 Version: bcf4934288402be3464110109a4dae3bd6fb3e93 Version: bcf4934288402be3464110109a4dae3bd6fb3e93 Version: bcf4934288402be3464110109a4dae3bd6fb3e93 Version: bcf4934288402be3464110109a4dae3bd6fb3e93 Version: bcf4934288402be3464110109a4dae3bd6fb3e93 |
||
{
"containers": {
"cna": {
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{
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"product": "Linux",
"programFiles": [
"net/bridge/netfilter/ebtables.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
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},
{
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],
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"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "4.6"
},
{
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"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.261",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.212",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.178",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.145",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.96",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.39",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.1.*",
"status": "unaffected",
"version": "7.1.4",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.6",
"vulnerable": true
},
{
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},
{
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{
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}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: ebtables: module names must be null-terminated\n\nWe need to explicitly check the length, else we may pass non-null\nterminated string to request_module()."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.1,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:L - The vulnerable ebtables replacement path is reached through a local setsockopt syscall, not through received network traffic.\nAC:L - The attacker controls the complete table blob, including offsets, allocation size, and unterminated match name; no race or uncontrollable condition is required.\nPR:L - The path requires CAP_NET_ADMIN in the socket network namespace, which an unprivileged user can obtain by creating user and network namespaces on deployments permitting unprivileged user namespaces.\nUI:N - Exploitation requires no action by another user after the attacker invokes setsockopt with the crafted table.\nS:U - The vulnerability affects the host kernel within the same security authority and does not cross a virtualization or IOMMU boundary.\nC:H - The unbounded %s traversal constitutes an out-of-bounds kernel read that can continue beyond the match-name field and table allocation; under the required higher-severity treatment for unbounded OOB reads, confidentiality impact is High.\nI:N - The vulnerable operation only reads while formatting a module name; there is no demonstrated out-of-bounds write, use-after-free, or control-flow modification primitive.\nA:H - A page-aligned nonzero table blob can make vsnprintf scan into the vmalloc guard page, causing a kernel oops or panic, and the attacker can repeat the trigger."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-17T04:55:11.246Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/43dd2332b8a27b3ac5108791680cade654ab0f96"
},
{
"url": "https://git.kernel.org/stable/c/5777c8f1c3610786d8482b8f620f40fccaf1542b"
},
{
"url": "https://git.kernel.org/stable/c/0ddca0f90fa3395111d078ae4399615cf3ea94aa"
},
{
"url": "https://git.kernel.org/stable/c/d2367d99f2455f373996d9ddbe833dbe9f942213"
},
{
"url": "https://git.kernel.org/stable/c/da32e78bbb187ed7b137e0007034185570a3a172"
},
{
"url": "https://git.kernel.org/stable/c/13a5f532e3a4fc75c33060a026def1572c208643"
},
{
"url": "https://git.kernel.org/stable/c/7b217960e88b5d2d1e8cdcbcaf3bdf6fe199a0c8"
},
{
"url": "https://git.kernel.org/stable/c/084d23f818321390509e9738a0b08bbf46df6425"
}
],
"title": "netfilter: ebtables: module names must be null-terminated",
"x_generator": {
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}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-64412",
"datePublished": "2026-07-25T08:50:52.946Z",
"dateReserved": "2026-07-19T15:36:31.786Z",
"dateUpdated": "2026-08-17T04:55:11.246Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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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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