{ "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": "2026-08-05T12:11:22.154Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:11:22.154Z" }, "descriptions": [ { "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." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "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" }, "scenarios": [ { "lang": "en", "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." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "fs/nfs/namespace.c", "fs/nfs/super.c" ], "versions": [ { "version": "f2aedb713c284429987dc66c7aaf38decfc8da2a", "lessThan": "a3dc6c40bcab1a888d5c0d134ccc0746b4c98929", "status": "affected", "versionType": "git" }, { "version": "f2aedb713c284429987dc66c7aaf38decfc8da2a", "lessThan": "ba1495aefd22fcf0746a2a3025c95d766d7cde4d", "status": "affected", "versionType": "git" }, { "version": "f2aedb713c284429987dc66c7aaf38decfc8da2a", "lessThan": "c09070b4def1b34e473a746c6a5331ccb80902c1", "status": "affected", "versionType": "git" }, { "version": "f2aedb713c284429987dc66c7aaf38decfc8da2a", "lessThan": "dce10c59211e5cd763a62ea01e79b82a629811e3", "status": "affected", "versionType": "git" }, { "version": "f2aedb713c284429987dc66c7aaf38decfc8da2a", "lessThan": "612cc98698d667df804792f0c47d4e501e66da29", "status": "affected", "versionType": "git" }, { "version": "f2aedb713c284429987dc66c7aaf38decfc8da2a", "lessThan": "4b296944e632cf4c6a4cc8e2585c6451eae47b1b", "status": "affected", "versionType": "git" }, { "version": "f2aedb713c284429987dc66c7aaf38decfc8da2a", "lessThan": "df9b003a2ecacc7218486fbb31fe008c93097d5f", "status": "affected", "versionType": "git" }, { "version": "f2aedb713c284429987dc66c7aaf38decfc8da2a", "lessThan": "8675c69816e4276b979ff475ee5fac4688f80125", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "fs/nfs/namespace.c", "fs/nfs/super.c" ], "versions": [ { "version": "5.6", "status": "affected" }, { "version": "0", "lessThan": "5.6", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.248", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.198", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.160", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.120", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.63", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.17.13", "lessThanOrEqual": "6.17.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.2", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.19", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.6", "versionEndExcluding": "5.10.248" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.6", "versionEndExcluding": "5.15.198" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.6", "versionEndExcluding": "6.1.160" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.6", "versionEndExcluding": "6.6.120" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.6", "versionEndExcluding": "6.12.63" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.6", "versionEndExcluding": "6.17.13" }, { 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"https://git.kernel.org/stable/c/8675c69816e4276b979ff475ee5fac4688f80125" } ], "title": "NFS: Automounted filesystems should inherit ro,noexec,nodev,sync flags", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-06-16T16:51:54.569623Z", "id": "CVE-2025-68764", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-16T16:52:07.816Z" } }, { "x_adpType": "supplier", "providerMetadata": { "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "shortName": "siemens-SADP", "dateUpdated": "2026-07-14T12:44:10.486Z" }, "affected": [ { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" } ], "references": [ { "url": 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