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CVE-2026-43378

🗓️ 08 May 2026 14:21:27Reported by LinuxType 
cve
 cve
🔗 web.nvd.nist.gov👁 14 Views

Linux kernel SMB server fix use after free in smb2_open due to opinfo dereference after rcu_read_unlock.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-43378
8 May 202614:21
attackerkb
AstraLinux
Astra Linux - уязвимость в linux-5.10
20 May 202605:53
astralinux
CNNVD
Linux kernel 安全漏洞
8 May 202600:00
cnnvd
Cvelist
CVE-2026-43378 smb: server: fix use-after-free in smb2_open()
8 May 202614:21
cvelist
Debian CVE
CVE-2026-43378
8 May 202614:21
debiancve
EUVD
EUVD-2026-28684
8 May 202615:31
euvd
NVD
CVE-2026-43378
8 May 202615:16
nvd
OSV
BELL-CVE-2026-43378
21 May 202606:10
osv
OSV
DEBIAN-CVE-2026-43378
8 May 202615:16
osv
OSV
ROOT-OS-UBUNTU-2204-CVE-2026-43378 CVE-2026-43378 in rootio-linux - Patched by Root
22 Jun 202607:30
osv
Rows per page
NVD
Vulners
CNA
Node
linuxlinux_kernelRange5.156.1.167
OR
linuxlinux_kernelRange6.26.6.130
OR
linuxlinux_kernelRange6.76.12.78
OR
linuxlinux_kernelRange6.136.18.19
OR
linuxlinux_kernelRange6.196.19.9
OROROR
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/smb/server/smb2pdu.c"
    ],
    "versions": [
      {
        "version": "e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9",
        "lessThan": "e1b21e6066615e7d3d3a7aa2677e415e563fd7cc",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9",
        "lessThan": "b720c84087cb547f23ce03eab93568c1769e4556",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9",
        "lessThan": "54b48ae83de8bb06e65079d96368efe359d4909c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9",
        "lessThan": "8f5b1a7cb009a93c48e9e334a2f59a660f9afc07",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9",
        "lessThan": "190e5f808e8058640b408ccfed25440b441a718a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9",
        "lessThan": "1e689a56173827669a35da7cb2a3c78ed5c53680",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/smb/server/smb2pdu.c"
    ],
    "versions": [
      {
        "version": "5.15",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.15",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.167",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.130",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.78",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.19",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19.9",
        "lessThanOrEqual": "6.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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17 Jun 2026 10:49Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.17.8 - 9.8
EPSS0.00308
14