{"id":"CVE-2026-68343","revision":null,"records":[{"revision":"5a611566fbbc4d42a220d70072ed3460","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-68343","aliases":[],"title":"smb: client: validate DFS referral PathConsumed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: validate DFS referral PathConsumed\n\nparse_dfs_referrals() validates that the response contains the fixed\nreferral entry array and, on for-next, the per-referral string offsets.\nHowever, the response also contains a PathConsumed value that is later\nused for DFS path parsing.\n\nIf a malformed response provides a PathConsumed value larger than the\nsearch name, later DFS parsing can advance beyond the end of the path.\n\nValidate PathConsumed against the search name length before storing it in\nthe parsed referral.","state":0,"publishedAt":"2026-08-10T12:03:19.939+00:00","modifiedAt":"2026-10-19T21:09:05.575+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"unaffected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"fs/smb/client/misc.c\"\n ],\n \"versions\": [\n {\n \"version\": \"4ecce920e13ace16a5ba45efe8909946c28fb2ad\",\n \"lessThan\": \"bfebe5110fd135d86d65a0a346e14c106b02028b\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"4ecce920e13ace16a5ba45efe8909946c28fb2ad\",\n \"lessThan\": \"5b439f39f33ec15d319ced3b025e122346fba987\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"4ecce920e13ace16a5ba45efe8909946c28fb2ad\",\n \"lessThan\": \"285bd4a5f3f156aa5869843b47a1b1380b774241\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"4ecce920e13ace16a5ba45efe8909946c28fb2ad\",\n \"lessThan\": \"2fdd6d196c656b376cc251e1e9ff110b3ed522e1\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"4ecce920e13ace16a5ba45efe8909946c28fb2ad\",\n \"lessThan\": \"9f88a99ed511651b2dc2177d6854b2d1b8322e75\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"4ecce920e13ace16a5ba45efe8909946c28fb2ad\",\n \"lessThan\": \"f6f5ee2aa33b350c671721b965251c42cebb962e\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n }\n ]\n }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"affected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"fs/smb/client/misc.c\"\n ],\n \"versions\": [\n {\n \"version\": \"4.11\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"4.11\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.183\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.148\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.101\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.18.42\",\n \"lessThanOrEqual\": \"6.18.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.1.6\",\n \"lessThanOrEqual\": \"7.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.2\",\n \"lessThanOrEqual\": \"*\",\n \"status\": \"unaffected\",\n \"versionType\": \"original_commit_for_fix\"\n }\n ]\n }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","score":9.1,"severity":"CRITICAL"}],"references":["https://git.kernel.org/stable/c/bfebe5110fd135d86d65a0a346e14c106b02028b","https://git.kernel.org/stable/c/5b439f39f33ec15d319ced3b025e122346fba987","https://git.kernel.org/stable/c/285bd4a5f3f156aa5869843b47a1b1380b774241","https://git.kernel.org/stable/c/2fdd6d196c656b376cc251e1e9ff110b3ed522e1","https://git.kernel.org/stable/c/9f88a99ed511651b2dc2177d6854b2d1b8322e75","https://git.kernel.org/stable/c/f6f5ee2aa33b350c671721b965251c42cebb962e"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-68343","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-68343","identifiers":["CVE-2026-68343"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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