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    CVE-2026-50752

    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.

    Published:Jun 8, 2026
    Last Modified:Jun 10, 2026
    EPS:Jun 8, 2026
    EPSS Score:0.00031
    CVSS Score:7.4

    Affected Products

    Vendor
    Checkpoint
    Product
    Quantum Security Gateway
    Vendor
    Checkpoint
    Product
    Spark Firewalls

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-295 Improper Certificate Validation

    Related CVEs

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    CVE-2026-85102 (CVSS 9.8) — Improper certificate trust validation during VPN negotiation in Check Point Quantum Security Gateway may allow…
    CVE-2026-62145 (CVSS 7.5) — A vulnerability in Check Point Gaia Portal allows an authenticated attacker with read-only Gaia Portal privile…
    CVE-2026-50751 (CVSS 9.3) — A logic flow weakness in Remote Access and Mobile Access certificate validation in deprecated IKEv1 key exchan…
    CVE-2026-48135 (CVSS 5.3) — A Check Point HTTP-based service can incorrectly handle malformed HTTP requests. The issue is related to HTTP …
    CVE-2026-48134 (CVSS 5.6) — When the DLP is active, the UserCheck Web Portal contains an input-handling issue in the UserChoice flow. Unde…
    CVE-2026-48133 (CVSS 7.5) — When the Identity Awareness blade is enabled with Browser-Based Authentication, an unauthenticated user may be…
    CVE-2026-48132 (CVSS 8.1) — The Security Gateway does not correctly validate a length value in certain IKE packets when NAT-T is used (450…
    CVE-2026-48131 (CVSS 8.1) — The VPN service may mishandle an unexpected IKE fragment value received on the IKE port 500/UDP during the ear…
    CVE-2024-24914 (CVSS 8) — Authenticated Gaia users can inject code or commands by global variables through special HTTP requests. A Secu…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High