CVE-2026-53390

🗓️ 19 Jul 2026 12:01:54Reported by LinuxType

CVE-2026-53390 ksmbd fixes out-of-bounds read in smb_check_perm_dacl by validating ACE size.

Reporter	Title	Published	Views	Family All 7
ATTACKERKB	CVE-2026-53390	19 Jul 202612:01	–	attackerkb
Cvelist	CVE-2026-53390 ksmbd: fix out-of-bounds read in smb_check_perm_dacl()	19 Jul 202612:01	–	cvelist
EUVD	EUVD-2026-45512	19 Jul 202612:01	–	euvd
NVD	CVE-2026-53390	19 Jul 202612:16	–	nvd
OSV	DEBIAN-CVE-2026-53390	19 Jul 202615:48	–	osv
Positive Technologies	PT-2026-61095	19 Jul 202600:00	–	ptsecurity
SUSE CVE	SUSE CVE-2026-53390	19 Jul 202617:36	–	susecve

Vulners

CNA

Node

linux linux_kernelRange6.1.176–6.1.177

linux linux_kernelRange6.6.140–6.6.144

linux linux_kernelRange6.12.84–6.12.95

linux linux_kernelRange6.18.25–6.18.38

linux linux_kernelRange5.15.210–5.16

linux linux_kernelRange7.0.2–7.1

linux linux_kernelRange7.1–6.1.177

linux linux_kernelRange6.2.0–6.6.144

linux linux_kernelRange6.7.0–6.12.95

linux linux_kernelRange6.13.0–6.18.38

linux linux_kernelRange6.19.0–7.1.3

linux linux_kernelRange7.2.0–7.2-rc1

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/smb/server/smbacl.c"
    ],
    "versions": [
      {
        "version": "f20adc4ef7428bc485ee83fd1a592252fb87718b",
        "lessThan": "988c93d3bba066d8669143e6ec30bb2be9608d53",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "325d4ac11f526cb8964cff14548ccf02d8c756d8",
        "lessThan": "36599894fa8536fefdf1e296c0af71b8b7226859",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "95e5aa3c3261da8c95b27d7aecf8ee39b9f86a4c",
        "lessThan": "d5c81a095c86fe507c032d08f3a8cfc518444927",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "90089584b2e25c4510b7b987387b4405f0673ece",
        "lessThan": "7627ff8c4f9919f14de562b0160ab4ec9d80b1f7",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d07b26f39246a82399661936dd0c853983cfade7",
        "lessThan": "e36e35660adb9b8ef1435ac359151dda5f094c55",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d07b26f39246a82399661936dd0c853983cfade7",
        "lessThan": "1ef06004ed4bd6d3ed8c840d9d1a376b66d4935b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "282cbbb476b9f35793452bc461934af4c7eca169",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "151b1799861fde38087c08f613abc2843ef597b0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6.1.176",
        "lessThan": "6.1.177",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.6.140",
        "lessThan": "6.6.144",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.12.84",
        "lessThan": "6.12.95",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.18.25",
        "lessThan": "6.18.38",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "5.15.210",
        "lessThan": "5.16",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "7.0.2",
        "lessThan": "7.1",
        "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/smbacl.c"
    ],
    "versions": [
      {
        "version": "7.1",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "7.1",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.177",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.144",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.95",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.38",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.3",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/36599894fa8536fefdf1e296c0af71b8b7226859
git	www.git.kernel.org/stable/c/d5c81a095c86fe507c032d08f3a8cfc518444927
git	www.git.kernel.org/stable/c/e36e35660adb9b8ef1435ac359151dda5f094c55
git	www.git.kernel.org/stable/c/7627ff8c4f9919f14de562b0160ab4ec9d80b1f7
git	www.git.kernel.org/stable/c/988c93d3bba066d8669143e6ec30bb2be9608d53
git	www.git.kernel.org/stable/c/1ef06004ed4bd6d3ed8c840d9d1a376b66d4935b

19 Jul 2026 12:16Current

5.7Medium risk

Vulners AI Score5.7