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CVE-2026-43455

🗓️ 08 May 2026 14:22:19Reported by LinuxType 
cve
 cve
🔗 web.nvd.nist.gov👁 3 Views

Fixed race in mctp flow: hold key lock during check and set to prevent dev leak.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-43455
8 May 202614:22
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-2026-43455 mctp: route: hold key->lock in mctp_flow_prepare_output()
8 May 202614:22
cvelist
Debian CVE
CVE-2026-43455
8 May 202614:22
debiancve
EUVD
EUVD-2026-28761
8 May 202615:31
euvd
NVD
CVE-2026-43455
8 May 202615:16
nvd
OSV
BELL-CVE-2026-43455
21 May 202606:10
osv
OSV
DEBIAN-CVE-2026-43455
8 May 202615:16
osv
OSV
ROOT-OS-UBUNTU-2404-CVE-2026-43455 CVE-2026-43455 in rootio-linux - Patched by Root
3 Jun 202607:40
osv
Rows per page
NVD
Vulners
CNA
Node
linuxlinux_kernelRange5.166.1.167
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": [
      "net/mctp/route.c"
    ],
    "versions": [
      {
        "version": "67737c457281dd199ceb9e31b6ba7efd3bfe566d",
        "lessThan": "47893166bc5611ee9a20de6b8d2933b2320fb772",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "67737c457281dd199ceb9e31b6ba7efd3bfe566d",
        "lessThan": "86f5334fcb48a5b611c33364ab52ca684d0f6d91",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "67737c457281dd199ceb9e31b6ba7efd3bfe566d",
        "lessThan": "0695712f3a6f1a48915f95767cfb42077683dcdc",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "67737c457281dd199ceb9e31b6ba7efd3bfe566d",
        "lessThan": "925a5ffd99cddd7a7e41d5ad120c7a2c6d50260f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "67737c457281dd199ceb9e31b6ba7efd3bfe566d",
        "lessThan": "8d27d9b260dd19c1b519e1a13de6448f9984e30e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "67737c457281dd199ceb9e31b6ba7efd3bfe566d",
        "lessThan": "7d86aa41c073c4e7eb75fd2e674f1fd8f289728a",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/mctp/route.c"
    ],
    "versions": [
      {
        "version": "5.16",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.16",
        "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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20 May 2026 18:04Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.15.5
EPSS0.00013
3