{"id":"CVE-2026-46185","revision":null,"records":[{"revision":"2207b792d21f46299f631eaef4fc6cd7","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-46185","aliases":[],"title":"smb/client: fix out-of-bounds read in symlink_data()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb/client: fix out-of-bounds read in symlink_data()\n\nSince smb2_check_message() returns success without length validation for\nthe symlink error response, in symlink_data() it is possible for\niov->iov_len to be smaller than sizeof(struct smb2_err_rsp). If the buffer\nonly contains the base SMB2 header (64 bytes), accessing\nerr->ErrorContextCount (at offset 66) or err->ByteCount later in\nsymlink_data() will cause an out-of-bounds read.","state":0,"publishedAt":"2026-05-28T09:36:39.318+00:00","modifiedAt":"2026-10-19T19:36:54.28+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/smb2misc.c\"\n ],\n \"versions\": [\n {\n \"version\": \"76894f3e2f71177747b8b4763fb180e800279585\",\n \"lessThan\": \"2be11faf79e49fb8250a181ff0b4d2b2f084af83\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"76894f3e2f71177747b8b4763fb180e800279585\",\n \"lessThan\": \"ef6495d4df6e7af8f3de67e65150881c880f696c\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"76894f3e2f71177747b8b4763fb180e800279585\",\n \"lessThan\": \"15dc0a4de743a1aaa7b859b3aea79f08c695396c\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"76894f3e2f71177747b8b4763fb180e800279585\",\n \"lessThan\": \"b8c8a704f0bc133deb171f6aeb6f3a684203e212\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"76894f3e2f71177747b8b4763fb180e800279585\",\n \"lessThan\": \"b9561402489d41149f63e001a74384863b7b30a6\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"76894f3e2f71177747b8b4763fb180e800279585\",\n \"lessThan\": \"d62b8d236fab503c6fec1d3e9a38bea71feaca20\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"2d046892a493d9760c35fdaefc3017f27f91b621\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"6.0.16\",\n \"lessThan\": \"6.1\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\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/smb2misc.c\"\n ],\n \"versions\": [\n {\n \"version\": \"6.1\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"6.1\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.175\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.140\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.88\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.18.30\",\n \"lessThanOrEqual\": \"6.18.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.0.7\",\n \"lessThanOrEqual\": \"7.0.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.1\",\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/2be11faf79e49fb8250a181ff0b4d2b2f084af83","https://git.kernel.org/stable/c/ef6495d4df6e7af8f3de67e65150881c880f696c","https://git.kernel.org/stable/c/15dc0a4de743a1aaa7b859b3aea79f08c695396c","https://git.kernel.org/stable/c/b8c8a704f0bc133deb171f6aeb6f3a684203e212","https://git.kernel.org/stable/c/b9561402489d41149f63e001a74384863b7b30a6","https://git.kernel.org/stable/c/d62b8d236fab503c6fec1d3e9a38bea71feaca20"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-46185","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-46185","identifiers":["CVE-2026-46185"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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