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CVE-2026-68431 ksmbd: validate minimum PDU size for transform requests

🗓️ 12 Aug 2026 00:07:17Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 5 Views

ksmbd out-of-bounds read in SMB2 transform request path allows unauthenticated information disclosure.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-68431
12 Aug 202600:07
attackerkb
cve
CVE
CVE-2026-68431
12 Aug 202600:07
cve
debiancve
Debian CVE
CVE-2026-68431
12 Aug 202600:07
debiancve
euvd
EUVD
EUVD-2026-57039
12 Aug 202600:07
euvd
nvd
NVD
CVE-2026-68431
12 Aug 202600:17
nvd
osv
OSV
DEBIAN-CVE-2026-68431
12 Aug 202600:17
osv
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/smb/server/connection.c"
    ],
    "versions": [
      {
        "version": "368ba06881c395f1c9a7ba22203cf8d78b4addc0",
        "lessThan": "b62c510f59803f82f9b4c76ead2a56833b2984c7",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "368ba06881c395f1c9a7ba22203cf8d78b4addc0",
        "lessThan": "cfc0b8e5080aec87700774e8568765eaa4b7b92b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "df3a4518aee64f21bcafa891105b468413f27431",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "543c12c2644e772caa6880662c2a852cfdc5a10c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e9cb7be2fcbaee9e808b729e92948d38d52e5add",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5.15.145",
        "lessThan": "5.16",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.1.34",
        "lessThan": "6.2",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.3.8",
        "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/connection.c"
    ],
    "versions": [
      {
        "version": "6.4",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.4",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.6",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2-rc5",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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