{
  "cveId": "CVE-2021-47160",
  "url": "https://patchblox.com/security/cve/CVE-2021-47160",
  "summary": "CVE-2021-47160 is fixed in linux on 1 platform, first by DEBIAN-CVE-2021-47160, released March 25, 2024. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  net: dsa: mt7530: fix VLAN traffic leaks  PCR_MA...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  net: dsa: mt7530: fix VLAN traffic leaks  PCR_MATRIX field was set to all 1\u0027s when VLAN filtering is enabled, but was not reset when it is disabled, which may cause traffic leaks:  \tip link add br0 type bridge vlan_filtering 1 \tip link add br1 type bridge vlan_filtering 1 \tip link set swp0 master br0 \tip link set swp1 master br1 \tip link set br0 type bridge vlan_filtering 0 \tip link set br1 type bridge vlan_filtering 0 \t# traffic in br0 and br1 will start leaking to each other  As port_bridge_{add,del} have set up PCR_MATRIX properly, remove the PCR_MATRIX write from mt7530_port_set_vlan_aware.",
  "published": "2024-03-25T10:15:08Z",
  "severity": "high",
  "cvss": 7.1,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
  "epss": 0.00333,
  "epssPercentile": 0.26692,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "5.14.6-1",
      "fix": "DEBIAN-CVE-2021-47160",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-47160",
      "released": "2024-03-25T10:15:08Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "5.14.6-1",
      "fix": "DEBIAN-CVE-2021-47160",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-47160",
      "released": "2024-03-25T10:15:08Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "5.14.6-1",
      "fix": "DEBIAN-CVE-2021-47160",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-47160",
      "released": "2024-03-25T10:15:08Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}