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GHSA-JQXH-X9F5-WCGW

Vulnerability from github – Published: 2026-06-08 12:30 – Updated: 2026-06-08 21:31

Details

A logic flow weakness in Remote Access and Mobile Access certificate validation in deprecated IKEv1 key exchange allows an unauthenticated remote attacker to bypass user authentication and establish a remote access VPN connection without a valid user password.

Severity

9.3 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N

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{
  "affected": [],
  "aliases": [
    "CVE-2026-50751"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-08T12:16:32Z",
    "severity": "CRITICAL"
  },
  "details": "A logic flow weakness in Remote Access and Mobile Access certificate validation in deprecated IKEv1 key exchange allows an unauthenticated remote attacker to bypass user authentication and establish a remote access VPN connection without a valid user password.",
  "id": "GHSA-jqxh-x9f5-wcgw",
  "modified": "2026-06-08T21:31:49Z",
  "published": "2026-06-08T12:30:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-50751"
    },
    {
      "type": "WEB",
      "url": "https://blog.checkpoint.com/security/check-point-releases-important-hotfix-for-vulnerabilities-in-deprecated-ikev1-vpn-protocol"
    },
    {
      "type": "WEB",
      "url": "https://support.checkpoint.com/results/sk/sk185033"
    },
    {
      "type": "WEB",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-50751"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-50751 (GCVE-0-2026-50751)

Vulnerability from cvelistv5 – Published: 2026-06-08 11:07 – Updated: 2026-08-04 03:56

Title

User Authentication Bypass in VPN Remote Access and Mobile Access

Summary

Severity

9.3 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N

SSVC

Exploitation: active Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-08 00:00 UTC

CWE

CWE-287 - Improper Authentication.

Assigner

checkpoint CNA under the mitre root

CNA scorecard C 66/100 over 17 records in the last 180 days details

References

3 references

URL	Tags
https://support.checkpoint.com/results/sk/sk185033
https://blog.checkpoint.com/security/check-point-…	vendor-advisory
https://www.cisa.gov/known-exploited-vulnerabilit…	government-resource

Impacted products

2 products

Vendor	Product	Version
checkpoint	Quantum Security Gateway	Affected: R82.10 with Jumbo Hotfix Take 19 or below Affected: R82 with Jumbo Hotfix Take 103 or below Affected: R81.20 with Jumbo Hotfix Take 141 or below Affected: R81.10, R81, and R80.40
checkpoint	Spark Firewalls	Affected: R80.20.X, R81.10.X, and R82.00.X

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JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 9.3,
              "baseSeverity": "CRITICAL",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "LOW",
              "privilegesRequired": "NONE",
              "scope": "CHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N",
              "version": "3.1"
            }
          },
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              "content": {
                "id": "CVE-2026-50751",
                "options": [
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                    "Exploitation": "active"
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                  },
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                  }
                ],
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                "timestamp": "2026-06-08T00:00:00+00:00",
                "version": "2.0.3"
              },
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          },
          {
            "other": {
              "content": {
                "dateAdded": "2026-06-08",
                "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-50751"
              },
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        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-04T03:56:11.310Z",
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            "url": "https://blog.checkpoint.com/security/check-point-releases-important-hotfix-for-vulnerabilities-in-deprecated-ikev1-vpn-protocol/"
          },
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            ],
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        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
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            {
              "status": "affected",
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      "metrics": [
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          "format": "CVSS",
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            "content": {
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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