CVE-2026-63858

{"id": "CVE-2026-63858", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-63858", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-10-16T15:32:27.434041Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "b6d9014a3335194590abdd2a2471ef5147a67645", "lessThan": "768daa9f4276be4007e88dea61a378c8582ba008", "versionType": "git"}, {"status": "affected", "version": "b6d9014a3335194590abdd2a2471ef5147a67645", "lessThan": "4e69bfb32b2db323d9205fdb30e284481b37817c", "versionType": "git"}, {"status": "affected", "version": "b6d9014a3335194590abdd2a2471ef5147a67645", "lessThan": "10f79dbd7719d1da9f5884d13060322d8729f091", "versionType": "git"}, {"status": "affected", "version": "7a248f9c74f9f62799718c12efd9e9e391d60b6f", "versionType": "git"}, {"status": "affected", "version": "f275989ad04159dbfc62cefb65ba9c5ba1d7c34f", "versionType": "git"}, {"status": "affected", "version": "62d91062058b42bf70b2c3446aec397bb0ce15ee", "versionType": "git"}, {"status": "affected", "version": "99180dec5ae582227219d1fdd0dd5ccf53ec7491", "versionType": "git"}, {"status": "affected", "version": "5.10.122", "lessThan": "5.11", "versionType": "semver"}, {"status": "affected", "version": "5.15.47", "lessThan": "5.16", "versionType": "semver"}, {"status": "affected", "version": "5.17.15", "lessThan": "5.18", "versionType": "semver"}, {"status": "affected", "version": "5.18.4", "lessThan": "5.19", "versionType": "semver"}], "programFiles": ["include/net/netfilter/nf_tables.h", "net/netfilter/nf_tables_api.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.19"}, {"status": "unaffected", "version": "0", "lessThan": "5.19", "versionType": "semver"}, {"status": "unaffected", "version": "6.18.57", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.0.10", "versionType": "semver", "lessThanOrEqual": "7.0.*"}, {"status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["include/net/netfilter/nf_tables.h", "net/netfilter/nf_tables_api.c"], "defaultStatus": "affected"}]}], "published": "2026-07-19T15:16:52.643", "references": [{"url": "https://git.kernel.org/stable/c/10f79dbd7719d1da9f5884d13060322d8729f091", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/4e69bfb32b2db323d9205fdb30e284481b37817c", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/768daa9f4276be4007e88dea61a378c8582ba008", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-362"}]}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-362"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: add hook transactions for device deletions\n\nRestore the flag that indicates that the hook is going away, ie.\nNFT_HOOK_REMOVE, but add a new transaction object to track deletion\nof hooks without altering the basechain/flowtable hook_list during\nthe preparation phase.\n\nThe existing approach that moves the hook from the basechain/flowtable\nhook_list to transaction hook_list breaks netlink dump path readers\nof this RCU-protected list.\n\nIt should be possible use an array for nft_trans_hook to store the\ndeleted hooks to compact the representation but I am not expecting\nmany hook object, specially now that wildcard support for devices\nis in place.\n\nNote that the nft_trans_chain_hooks() list contains a list of struct\nnft_trans_hook objects for DELCHAIN and DELFLOWTABLE commands, while\nthis list stores struct nft_hook objects for NEWCHAIN and NEWFLOWTABLE.\nNote that new commands can be updated to use nft_trans_hook for\nconsistency.\n\nThis patch also adapts the event notification path to deal with the list\nof hook transactions."}], "lastModified": "2026-10-26T16:27:27.510", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FF8171FF-208D-4EF9-A820-B5DFD62A13B2", "versionEndExcluding": "5.11", "versionStartIncluding": "5.10.122"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E8AA23C7-226F-42B8-B5F5-05131D23621E", "versionEndExcluding": "5.16", "versionStartIncluding": "5.15.47"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5BF6ED63-C6AF-4B5E-9814-C77A3C45349D", "versionEndExcluding": "5.18", "versionStartIncluding": "5.17.15"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C681E105-4A0C-49A5-9351-D60E86303ED3", "versionEndExcluding": "5.19", "versionStartIncluding": "5.18.4"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "77B91DA4-75BC-4423-834C-872AEBD486A2", "versionEndExcluding": "6.18.57", "versionStartIncluding": "5.19.1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A13475D2-59BF-4716-94B5-7C1D239A2CF4", "versionEndExcluding": "7.0.10", "versionStartIncluding": "6.19"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.19:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9D759CCF-9E1B-41B2-81AA-CB580C5F3EEC"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BF8547FC-C849-4F1B-804B-A93AE2F04A92"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F3068028-F453-4A1C-B80F-3F5609ACEF60"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.19:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2E9C0DB0-D349-489F-A3D6-B77214E93A8A"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.19:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1A0DE3B7-0FFB-45AA-9BD6-19870CA7C6FD"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.19:rc6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "00AE778B-BAEE-49EB-9F84-003B73D7862A"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.19:rc7:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C178431E-AD82-4B3D-B70F-A273A02ABD5D"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.19:rc8:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2CF5D19C-C418-4B57-B52D-7795547F4096"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B1EF7059-E670-45F4-B422-54C40FA86390"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}