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CVE-2026-64400

🗓️ 25 Jul 2026 08:50:43Reported by LinuxType 
cve
 cve
🔗 web.nvd.nist.gov👁 86 Views

Fix ksmbd path traversal by restricting caseless retry to ENOENT instead of all errors.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-64400
25 Jul 202608:50
–attackerkb
cgr
Chainguard
CVE-2026-64400 vulnerabilities
10 Sep 202608:54
–cgr
circl
Circl
CVE-2026-64400
15 Sep 202612:46
–circl
cnnvd
CNNVD
Linux Kernel Security Vulnerabilities
24 Jul 202616:00
–cnnvd
cvelist
Cvelist
CVE-2026-64400 ksmbd: prevent path traversal bypass by restricting caseless retry
25 Jul 202608:50
–cvelist
debian
Debian
[SECURITY] [DSA 6602-1] linux security update
2 Nov 202616:13
–debian
debiancve
Debian CVE
CVE-2026-64400
25 Jul 202608:50
–debiancve
euvd
EUVD
EUVD-2026-48944
25 Jul 202608:50
–euvd
nvd
NVD
CVE-2026-64400
25 Jul 202610:17
–nvd
osv_bell
osv_bell
BELL-CVE-2026-64400
29 Jul 202606:05
–osv_bell
Rows per page
NVD
Vulners
CNA
Node
OR
linuxlinux_kernelRange5.15.145–5.16
linuxlinux_kernelRange6.1.71–6.2
linuxlinux_kernelRange6.3.10–7.1.4
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/smb/server/vfs.c"
    ],
    "versions": [
      {
        "version": "6927ffe7479c72e7ebf885507227266a75f7c97d",
        "lessThan": "21f050439db157f2afcc19885dec14549ca6ffc0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "74d7970febf7e9005375aeda0df821d2edffc9f7",
        "lessThan": "eec1dd2586c4016b7555a5d047db2b3756459fb2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "74d7970febf7e9005375aeda0df821d2edffc9f7",
        "lessThan": "a1c331d98313380c38f616c8b28b890ec8ef9c28",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "74d7970febf7e9005375aeda0df821d2edffc9f7",
        "lessThan": "cfb5a56c218888f9d74165dff0c282cd0be97983",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "74d7970febf7e9005375aeda0df821d2edffc9f7",
        "lessThan": "8c9a4f1327eb71efbf14842e7b8a6d965077eb67",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "74d7970febf7e9005375aeda0df821d2edffc9f7",
        "lessThan": "54bab9ba5a9f156ffa9324fcbe5a356fd0242f95",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "019aae488dbc67c97a33db03652e20e2c9e3afa7",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ef6cc1c465786b3e4e735d1ab8b616b3e94402df",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6.1.71",
        "lessThan": "6.1.191",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "5.15.145",
        "lessThan": "5.16",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.3.10",
        "lessThan": "6.4",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/smb/server/vfs.c"
    ],
    "versions": [
      {
        "version": "6.4",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.4",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.191",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.160",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.114",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.57",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.4",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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30 Oct 2026 13:19Current
6Medium risk
Vulners AI Score6
CVSS 3.18.6
EPSS0.00447
86