{"id":"CVE-2026-46185","title":"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_da…","summary":"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_da…","severity":"critical","cvss":9.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","cwe":["CWE-125"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 6.0.16, < 6.1.175","linux_kernel >= 6.2, < 6.6.140","linux_kernel >= 6.7, < 6.12.88","linux_kernel >= 6.13, < 6.18.30","linux_kernel >= 6.19, < 7.0.7","linux_kernel = 7.1"],"patched":["linux_kernel 7.0.7"],"published":"2026-05-28","updated":"2026-10-15","sourceUpdated":"2026-10-15T02:19:48.980","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-46185","references":[{"url":"https://git.kernel.org/stable/c/15dc0a4de743a1aaa7b859b3aea79f08c695396c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/2be11faf79e49fb8250a181ff0b4d2b2f084af83","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b8c8a704f0bc133deb171f6aeb6f3a684203e212","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b9561402489d41149f63e001a74384863b7b30a6","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d62b8d236fab503c6fec1d3e9a38bea71feaca20","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ef6495d4df6e7af8f3de67e65150881c880f696c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-784472.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd","cve.org"],"epss":0.00513,"epssPercentile":0.42279,"ingestedAt":"2026-10-15T03:30:12.894Z","slug":"CVE-2026-46185","body":"## Overview\n\nIn 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.\n\n## Affected\n\n- `linux_kernel >= 6.0.16, < 6.1.175`\n- `linux_kernel >= 6.2, < 6.6.140`\n- `linux_kernel >= 6.7, < 6.12.88`\n- `linux_kernel >= 6.13, < 6.18.30`\n- `linux_kernel >= 6.19, < 7.0.7`\n- `linux_kernel = 7.1`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 7.0.7`","depth":"midnight","depthScore":50,"depthScoreParts":{"impact":50.1,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}