{
  "cveId": "CVE-2026-53211",
  "url": "https://patchblox.com/security/cve/CVE-2026-53211",
  "summary": "CVE-2026-53211 is fixed in linux on 1 platform by DEBIAN-CVE-2026-53211 (version 7.0.13-1), released June 28, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  netfilter: nft_meta_bridge: fix stale stack leak...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  netfilter: nft_meta_bridge: fix stale stack leak via IIFHWADDR register  NFT_META_BRI_IIFHWADDR declares its destination register with len = ETH_ALEN (6 bytes), which the register-init tracking rounds up to two 32-bit registers (8 bytes). nft_meta_bridge_get_eval() then does memcpy(dest, br_dev-\u003Edev_addr, ETH_ALEN), writing only 6 bytes and leaving the upper 2 bytes of the second register as uninitialised nft_do_chain() stack. A downstream load of that register span leaks those stale bytes to userspace.  Zero the second register before the memcpy so the full declared span is written.",
  "published": "2026-06-25T09:16:38Z",
  "severity": "medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.0016,
  "epssPercentile": 0.05216,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.0.13-1",
      "fix": "DEBIAN-CVE-2026-53211",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-53211",
      "released": "2026-06-28T17:47:07Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T13:31:49Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}