{
  "cveId": "CVE-2026-5265",
  "url": "https://patchblox.com/security/cve/CVE-2026-5265",
  "summary": "CVE-2026-5265 is fixed in 3 products on 1 platform, first by RHSA-2026:22110, released April 13, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "ovn25.03: When generating an ICMP Destination Unreachable or Packet Too Big response, the handler copies a portion of the origi...",
  "description": "When generating an ICMP Destination Unreachable or Packet Too Big response, the handler copies a portion of the original packet into the ICMP error body using the IP header\u0027s self-declared total length (ip_tot_len for IPv4, ip6_plen for IPv6) without validating it against the actual packet buffer size. A VM can send a short packet with an inflated IP length field that triggers an ICMP error (e.g., by hitting a reject ACL), causing ovn-controller to read heap memory beyond the valid packet data and include it in the ICMP response sent back to the VM.",
  "published": "2026-04-06T00:00:00Z",
  "severity": "moderate",
  "cvss": 6.5,
  "epss": 0.00629,
  "epssPercentile": 0.50414,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "openvswitch",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "3.5.4-160000.4.1",
      "fix": "OPENSUSE-SU-2026:20972-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-20972-1",
      "released": "2026-06-17T08:37:36Z"
    },
    {
      "platform": "linux",
      "product": "openvswitch",
      "release": "sles 15.6",
      "fixedVersion": "3.1.7-150600.33.15.1",
      "fix": "SUSE-SU-2026:2475-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-2475-1",
      "released": "2026-06-22T08:23:52Z"
    },
    {
      "platform": "linux",
      "product": "openvswitch",
      "release": "sles 15.7",
      "fixedVersion": "3.5.4-150700.41.18.1",
      "fix": "SUSE-SU-2026:2463-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-2463-1",
      "released": "2026-06-19T09:44:07Z"
    },
    {
      "platform": "linux",
      "product": "openvswitch",
      "release": "sles 16.0",
      "fixedVersion": "3.5.4-160000.4.1",
      "fix": "SUSE-SU-2026:22152-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-22152-1",
      "released": "2026-06-17T08:36:56Z"
    },
    {
      "platform": "linux",
      "product": "ovn25.03",
      "release": "RHEL 10",
      "fixedVersion": "25.03.2-100.el10fdp",
      "fix": "RHSA-2026:22110",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-22110",
      "released": "2026-04-13T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "ovn25.09",
      "release": "RHEL 10",
      "fixedVersion": "25.09.2-103.el10fdp",
      "fix": "RHSA-2026:22111",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-22111",
      "released": "2026-04-13T00:00:00Z"
    }
  ],
  "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"
  }
}