{
  "cveId": "CVE-2026-64006",
  "url": "https://patchblox.com/security/cve/CVE-2026-64006",
  "summary": "CVE-2026-64006 is fixed in 35 products on 1 platform, first by ALAS2023-2026-1881, released June 22, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  netfilter: nf_tables: fix dst corruption in same...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  netfilter: nf_tables: fix dst corruption in same register operation  For lshift and rshift, the shift operations are performed in a loop over 32-bit words. The loop calculates the shifted value and write it to dst, and then immediately reads from src to calculate the carry for the next iteration. Because src and dst could point to the same memory location, the carry is incorrectly calculated using the newly modified dst value instead of the original src value.  Adding a temporary local variable to cache the original value before writing to dst and using it for the carry calculation solves the problem. In addition, partial overlap is rejected from control plane for all kind of operations including byteorder. This was tested with the following bytecode:  table test_table ip flags 0 use 1 handle 1 ip test_table test_chain use 3 type filter hook input prio 0 policy accept packets 0 bytes 0 flags 1 ip test_table test_chain 2   [ immediate reg 1 0x44332211 0x88776655 ]   [ bitwise reg 1 = ( reg 1 \u003C\u003C 0x08000000 ) ]   [ cmp eq reg 1 0x66443322 0x00887766 ]   [ counter pkts 0 bytes 0 ] ip test_table test_chain 4 3   [ immediate reg 1 0x44332211 0x88776655 ]   [ bitwise reg 1 = ( reg 1 \u003C\u003C 0x08000000 ) ]   [ cmp eq reg 1 0x55443322 0x00887766 ]   [ counter pkts 21794 bytes 1917798 ]",
  "published": "2026-06-22T09:00:00Z",
  "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": 0.00125,
  "epssPercentile": 0.02224,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
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      "released": "2026-06-22T09:00:00Z"
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      "release": "amzn 2023",
      "fixedVersion": "1:6.18.35-68.127.amzn2023",
      "fix": "ALAS2023-2026-1881",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1881",
      "released": "2026-06-22T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-perf6.18-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.35-68.127.amzn2023",
      "fix": "ALAS2023-2026-1881",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1881",
      "released": "2026-06-22T09:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}