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

Vulnerability from cvelistv5 – Published: 2026-06-08 11:07 – Updated: 2026-08-04 03:56
VLAI CISA CIRCL Previdian
Title
User Authentication Bypass in VPN Remote Access and Mobile Access
Summary
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
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
Impacted products
Vendor Product Version CPE status
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
guessed Create a notification for this product.
checkpoint Spark Firewalls Affected: R80.20.X, R81.10.X, and R82.00.X
guessed Create a notification for this product.
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: ba636079-6682-4f8f-93e0-5668da7fd462

Vulnerability ID: CVE-2026-50751

Status: Confirmed

Status Updated: 2026-06-08 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2026-06-08
Asserted: 2026-06-08
Scope
Notes: KEV entry: Check Point Security Gateway Improper Authentication Vulnerability | Affected: Check Point / Security Gateway | Description: Check Point Security Gateway contains an improper authentication vulnerability in IKEv1 key exchange that could allow an unauthenticated remote attacker to bypass user authentication and establish a remote access VPN connection without a valid user password. | Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. | Due date: 2026-06-11 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://blog.checkpoint.com/security/check-point-releases-important-hotfix-for-vulnerabilities-in-deprecated-ikev1-vpn-protocol/ ; https://support.checkpoint.com/results/sk/sk185033?_gl=1*1wqeqhc*_gcl_au*MTI1MzE5MjI2LjE3ODA5MzQ1NTM. ; https://nvd.nist.gov/vuln/detail/CVE-2026-50751
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-287
Feed CISA Known Exploited Vulnerabilities Catalog
Product Security Gateway
Due Date 2026-06-11
Date Added 2026-06-08
Vendorproject Check Point
Vulnerabilityname Check Point Security Gateway Improper Authentication Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-06-08 20:00 UTC | Updated: 2026-06-08 20:00 UTC
CIRCL
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 9668c362-595a-4b6d-a788-a3429da4656b

Vulnerability ID: CVE-2026-50751

Status: Confirmed

Status Updated: 2026-06-08 13:18 UTC

Exploited: Yes

Characteristics
Remote Code Execution: No
Authentication Required: No
Local Access Required: Remote
Timestamps
First Seen: 2026-06-08
Asserted: 2026-06-08
Last Seen: 2026-06-08
Scope
Notes: CVE-2026-50751 - Check Point has observed active exploitation of this vulnerability in the wild. Ref https://blog.checkpoint.com/security/check-point-releases-important-hotfix-for-vulnerabilities-in-deprecated-ikev1-vpn-protocol
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 100%

Source: Checkpoint

Details
Note https://blog.checkpoint.com/security/check-point-releases-important-hotfix-for-vulnerabilities-in-deprecated-ikev1-vpn-protocol
Created: 2026-06-08 13:19 UTC | Updated: 2026-06-08 13:19 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: feccf252-10d1-4d86-bf22-c40658570cf5

Vulnerability ID: CVE-2026-50751

Status: Confirmed

Status Updated: 2026-06-08 14:20 UTC

Exploited: Yes

Timestamps
First Seen: 2026-06-08
Asserted: 2026-06-08
Scope
Notes: KEVIntel entry: User Authentication Bypass in VPN Remote Access and Mobile Access | Affected: checkpoint / Quantum Security Gateway, Spark Firewalls | CVSS: 9.3 (CRITICAL) | EPSS: 0.41152 | Used in malware: yes | Not yet in CISA KEV: False
Evidence

Type: Public Report

Signal: Confirmed Compromise

Confidence: 70%

Source: kevintel

Details
Feed KEVIntel (kevintel.com)
Title User Authentication Bypass in VPN Remote Access and Mobile Access
Vendor checkpoint
Product Quantum Security Gateway, Spark Firewalls
Added Date 2026-06-08T14:20:34.968Z
Cvss Score 9.3
Epss Score 0.41152
Cvss Severity CRITICAL
Epss Percentile 0.98485
Used In Malware yes
Ahead Of Cisa Kev 
{
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  "unit": "hour"
}
Not Yet In Cisa Kev False
References
Created: 2026-06-23 14:03 UTC | Updated: 2026-07-10 06:14 UTC
Show details on NVD website
To clipboard 

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                  "vulnIntegrityImpact": "HIGH"
                },
                "type": "CVSSv4.0"
              },
              "scenarios": [
                {
                  "lang": "en",
                  "value": "GENERAL"
                }
              ]
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-287",
                  "description": "CWE-287: Improper Authentication.",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-06-08T11:07:15.746Z",
            "orgId": "897c38be-0345-43cd-b6cf-fe179e0c4f45",
            "shortName": "checkpoint"
          },
          "references": [
            {
              "url": "https://support.checkpoint.com/results/sk/sk185033"
            }
          ],
          "title": "User Authentication Bypass in VPN Remote Access and Mobile Access"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "897c38be-0345-43cd-b6cf-fe179e0c4f45",
        "assignerShortName": "checkpoint",
        "cveId": "CVE-2026-50751",
        "datePublished": "2026-06-08T11:07:15.746Z",
        "dateReserved": "2026-06-07T09:42:08.251Z",
        "dateUpdated": "2026-06-10T13:37:27.725Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

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    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.