{
  "cveId": "CVE-2026-71218",
  "url": "https://patchblox.com/security/cve/CVE-2026-71218",
  "summary": "CVE-2026-71218 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-71218, released August 13, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "Iperf3: unbounded peer-controlled allocation in iperf3 json_read() allows unauthenticated remote memory exhaustion",
  "description": "A flaw was found in iperf3. A remote unauthenticated attacker can exploit a vulnerability in the \u0060JSON_read()\u0060 function, which accepts a peer-controlled message length and allocates memory without an upper bound. This allows the attacker to trigger excessive memory consumption, leading to a Denial of Service (DoS) through memory exhaustion, severe slowdown, or termination of the iperf3 service.",
  "published": "2026-08-11T09:17:14Z",
  "severity": "Moderate",
  "cvss": 5.3,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
  "cwe": "Memory Allocation with Excessive Size Value",
  "epss": 0.00383,
  "epssPercentile": 0.32668,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-71218",
  "fixes": [
    {
      "platform": "linux",
      "product": "iperf",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "3.21-160000.1.1",
      "fix": "OPENSUSE-SU-2026:22090-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-22090-1",
      "released": "2026-11-07T00:47:19Z"
    },
    {
      "platform": "linux",
      "product": "iperf",
      "release": "sles 15.7",
      "fixedVersion": "3.22-150000.3.18.1",
      "fix": "SUSE-SU-2026:4678-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4678-1",
      "released": "2026-11-07T00:43:02Z"
    },
    {
      "platform": "linux",
      "product": "iperf",
      "release": "sles 16.0",
      "fixedVersion": "3.21-160000.1.1",
      "fix": "SUSE-SU-2026:24234-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-24234-1",
      "released": "2026-11-07T00:44:01Z"
    },
    {
      "platform": "linux",
      "product": "iperf3",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "3.18-1",
      "fix": "DEBIAN-CVE-2026-71218",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-71218",
      "released": "2026-08-13T22:19:30Z"
    },
    {
      "platform": "linux",
      "product": "iperf3",
      "release": "Debian 14",
      "fixedVersion": "3.18-1",
      "fix": "DEBIAN-CVE-2026-71218",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-71218",
      "released": "2026-08-13T22:19:30Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T19:12:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}