CVE-2026-123200

{
  "etk_id": "ETK-2026-3660",
  "cve_id": "CVE-2026-123200",
  "display_id": "CVE-2026-123200",
  "ghsa_id": "GHSA-x3v7-qh5m-v37c",
  "euvd_id": "EUVD-2026-117645",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Out-of-bounds stack write in VRPN endpoint handling",
  "summary": "VRPN through 07.36 is affected by an out-of-bounds stack write in endpoint handling of peer-supplied description messages. A remote, unauthenticated peer that can connect and complete the initial protocol exchange may crash the VRPN process.",
  "mitigation": "Restrict VRPN listener access to trusted hosts with firewall rules or network segmentation, and do not expose it to untrusted networks. Monitor for a vendor-fixed release and upgrade when one is available.",
  "vendor": "VRPN",
  "product": "VRPN",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0, <= 07.36"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "VRPN",
      "purl": null
    }
  ],
  "cwes": [
    129
  ],
  "cvss_score": 8.7,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 43.4059091,
  "t0_at": "2026-11-05T18:16:37.053000+00:00",
  "signals": {
    "check": {
      "at": "2026-11-05T19:52:34.857844+00:00",
      "days": 0.06664125976851852,
      "is_lower_bound": false,
      "measured_at": "2026-11-05T18:16:37.053000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-11-05T18:16:37.053000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-11-05T18:16:37.053000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-123200"
    }
  }
}