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CVE-2026-53209

🗓️ 25 Jun 2026 08:39:14Reported by LinuxType 
cve
 cve
🔗 web.nvd.nist.gov👁 31 Views

CVE-2026-53209: Linux Bluetooth hci_sync rejects oversized Broadcast Announcement prepend to prevent overflow.

Related
Detection
Affected
Refs
NVD
Vulners
CNA
Node
OR
linuxlinux_kernelRange6.1.1426.1.176
linuxlinux_kernelRange6.6.946.6.143
linuxlinux_kernelRange6.12.346.12.94
linuxlinux_kernelRange6.15.36.16
linuxlinux_kernelRange6.16.16.18.36
linuxlinux_kernelRange6.197.0.13
linuxlinux_kernelMatch6.16rc2
linuxlinux_kernelMatch6.16rc3
linuxlinux_kernelMatch6.16rc4
linuxlinux_kernelMatch6.16rc5
linuxlinux_kernelMatch6.16rc6
linuxlinux_kernelMatch6.16rc7
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/bluetooth/hci_sync.c"
    ],
    "versions": [
      {
        "version": "63f365eb4d1668a04070151b555d55a07ede8d4b",
        "lessThan": "10b0e832cc05d7aef4b92bed912cbd4a395d0862",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c621211b308816889f0a3246de448bfcef8ab3ab",
        "lessThan": "1338ee049a8910ba6c9cee963920e978e6893c7d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "907ef6e12fb558a0763e894311eb245a94c192dd",
        "lessThan": "02f50e8bb69f9b22516163a09922f5537d3b12d1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5725bc608252050ed8a4d47d59225b7dd73474c8",
        "lessThan": "dafc9f57140e66a10945127aa7433c3d715dc253",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5725bc608252050ed8a4d47d59225b7dd73474c8",
        "lessThan": "cdd8bbdbee763fdf5bf343e6f7d4e79347739f62",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5725bc608252050ed8a4d47d59225b7dd73474c8",
        "lessThan": "5c65b96b549ea2dcfde497436bf9e048deb87758",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "15da883c010cbc2a84aec1738b6ad6ee477846de",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6.1.142",
        "lessThan": "6.1.176",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.6.94",
        "lessThan": "6.6.143",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.12.34",
        "lessThan": "6.12.94",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.15.3",
        "lessThan": "6.16",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/bluetooth/hci_sync.c"
    ],
    "versions": [
      {
        "version": "6.16",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.16",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.176",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.143",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.94",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.36",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.13",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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05 Aug 2026 12:34Current
6Medium risk
Vulners AI Score6
CVSS 3.17.8
EPSS0.00129
31