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vuln-cve/data/2025/68xxx/CVE-2025-68764.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2025-68764",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2025-12-24T10:30:51.034Z",
"datePublished": "2026-01-05T09:44:12.518Z",
"dateUpdated": "2026-11-10T12:38:21.858Z"
},
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"dateUpdated": "2026-08-05T12:11:22.154Z"
},
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{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFS: Automounted filesystems should inherit ro,noexec,nodev,sync flags\n\nWhen a filesystem is being automounted, it needs to preserve the\nuser-set superblock mount options, such as the \"ro\" flag."
}
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"baseScore": 7.8,
"baseSeverity": "HIGH"
},
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"value": "AV:L - Exploitation is triggered through ordinary local pathname operations such as openat() on an existing NFS mount; an NFS server cannot independently initiate the vulnerable automount.\nAC:L - Once a restricted NFS mount contains a server-side filesystem boundary or referral, the attacker can reliably trigger the flaw by traversing it, without a race or timing dependency.\nPR:L - The initial NFS mount requires CAP_SYS_ADMIN, but the attacker only needs ordinary local access plus NFS permissions to traverse and modify the affected child filesystem.\nUI:N - After the NFS mount is configured, the attacker directly triggers automounting and subsequent writes without another user's action.\nS:U - The policy bypass and any resulting local privilege escalation remain within the host kernel's security authority and do not cross a VM or IOMMU boundary.\nC:H - In a high-impact deployment, modifying privileged-service configuration or executable content on the writable child can yield root access and unrestricted disclosure of host and NFS data.\nI:H - The missing inherited read-only protection permits modification or deletion throughout server-authorized portions of the child filesystem despite client policy. Privileged consumers of that content can turn this into arbitrary code execution.\nA:H - The attacker can corrupt or delete critical automounted data, or obtain root and terminate essential services, causing complete availability loss."
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"cpeApplicability": [
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"url": "https://git.kernel.org/stable/c/8675c69816e4276b979ff475ee5fac4688f80125"
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"title": "NFS: Automounted filesystems should inherit ro,noexec,nodev,sync flags",
"x_generator": {
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"metrics": [
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"other": {
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"content": {
"id": "CVE-2025-68764",
"role": "CISA Coordinator",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-06-16T16:51:54.569623Z"
}
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],
"problemTypes": [
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"descriptions": [
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"type": "CWE",
"cweId": "CWE-862",
"description": "CWE-862 Missing Authorization"
}
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}
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"providerMetadata": {
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"dateUpdated": "2026-10-19T18:05:06.551Z"
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}
}
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