{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:12",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.1.187-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:13",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.12.85-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.18.14-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  inet: RAW sockets using IPPROTO_RAW MUST drop incoming ICMP  Yizhou Zhao reported that simply having one RAW socket on protocol IPPROTO_RAW (255) was dangerous.    socket(AF_INET, SOCK_RAW, 255);  A malicious incoming ICMP packet can set the protocol field to 255 and match this socket, leading to FNHE cache changes.  inner = IP(src=\"192.168.2.1\", dst=\"8.8.8.8\", proto=255)/Raw(\"TEST\") pkt = IP(src=\"192.168.1.1\", dst=\"192.168.2.1\")/ICMP(type=3, code=4, nexthopmtu=576)/inner  \"man 7 raw\" states:    A protocol of IPPROTO_RAW implies enabled IP_HDRINCL and is able   to send any IP protocol that is specified in the passed header.   Receiving of all IP protocols via IPPROTO_RAW is not possible   using raw sockets.  Make sure we drop these malicious packets.",
  "id": "DEBIAN-CVE-2026-46266",
  "modified": "2026-09-14T16:47:43.743818232Z",
  "published": "2026-06-03T18:16:28.147Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-46266"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "upstream": [
    "CVE-2026-46266"
  ]
}