cve-2026-50752

{
  "cvss": 0.0,
  "datePublished": "2026-09-16T00:00:00Z",
  "dateUpdated": "2026-09-16T00:00:00Z",
  "description": "A weakness in the certificate validation logic of the deprecated IKEv1 key exchange may allow an unauthenticated attacker positioned as a man-in-the-middle to bypass certificate validation in VPN site-to-site connections that use certificate-based authentication. Successful exploitation could allow interception or modification of traffic traversing the VPN tunnel.",
  "dueDate": "",
  "id": "CVE-2026-50752",
  "kev_catalogs": [
    "vulncheck"
  ],
  "knownRansomwareCampaignUse": "Known",
  "product": "Quantum Security Gateway",
  "requiredAction": "Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.",
  "severity": "CRITICAL",
  "source": "vulncheck_kev",
  "title": "  Improper Certificate Validation",
  "vendor": "checkpoint"
}