1. Home
  2. Vulnerabilities
  3. CVE-2026-50751
Known Exploited Vulnerability
9.3
CRITICAL CVSS 3.1
CVE-2026-50751
Check Point Security Gateway Improper Authentication Vulnerability - [Actively Exploited]
Overview
Description

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.

Details
INFO

Published Date :

June 8, 2026, 12:16 p.m.

Last Modified :

June 9, 2026, 6:30 p.m.

Remotely Exploit :

Yes !

Source :

[email protected]
CISA Notification
CISA KEV (Known Exploited Vulnerabilities)

For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.

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.

Known Ransomware Campaign Use:

Known Detected Jun 10, 2026

Notes :

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

Impact
Affected Products

The following products are affected by CVE-2026-50751 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Checkpoint gaia_os
2 Checkpoint quantum_security_gateway
3 Checkpoint gaia_embedded
4 Checkpoint quantum_spark_1530
5 Checkpoint quantum_spark_1550
6 Checkpoint quantum_spark_1570
7 Checkpoint quantum_spark_1570r
8 Checkpoint quantum_spark_1590
9 Checkpoint quantum_spark_1595r
10 Checkpoint quantum_spark_1600
11 Checkpoint quantum_spark_1800
12 Checkpoint quantum_spark_1900
13 Checkpoint quantum_spark_2000
14 Checkpoint quantum_spark_1535
15 Checkpoint quantum_spark_1555
16 Checkpoint quantum_spark_1575
17 Checkpoint quantum_spark_1575r
18 Checkpoint quantum_spark_2530
19 Checkpoint quantum_spark_2550
20 Checkpoint quantum_spark_2560
21 Checkpoint quantum_spark_2570
22 Checkpoint quantum_spark_2580
23 Checkpoint quantum_spark_2590
: Total Affected Vendor : 1 | Products : 23
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 CRITICAL 134c704f-9b21-4f2e-91b3-4a467353bcc0
Solution
Disable deprecated IKEv1 and enforce IKEv2 for VPN connections to prevent authentication bypass.
  • Disable IKEv1 on all VPN gateways.
  • Enforce IKEv2 for all VPN connections.
  • Update VPN client configurations.
Public PoC/Exploit Available at Github

CVE-2026-50751 has a 12 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-50751.

URL Resource
https://support.checkpoint.com/results/sk/sk185033 Mitigation Patch Vendor Advisory
https://blog.checkpoint.com/security/check-point-releases-important-hotfix-for-vulnerabilities-in-deprecated-ikev1-vpn-protocol/ Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-50751 US Government Resource
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-50751 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-50751 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Profile Photo
WadesWeaponShed/CheckPoint-CVE-Webscanner

A web version of the bash scripts wrote for Check Point CVE-2026-50751 and CVE-2026-50752. This uses a local server to scan and make changes using Check Point Web API

JavaScript HTML CSS

Updated: 1 week, 2 days ago
1 stars 0 fork 0 watcher
Born at : June 18, 2026, 9:45 p.m. This repo has been linked 2 different CVEs too.
Profile Photo
bolubey/CVE-2026-50751

CVE-2026-50751 Mass Scanner

cve-2026-50751

Python

Updated: 1 week, 5 days ago
0 stars 0 fork 0 watcher
Born at : June 16, 2026, 11:08 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
PedrosoRo/vulnerability-intel-weekly

Este repositório reúne análises semanais de vulnerabilidades críticas

Updated: 1 week, 5 days ago
1 stars 0 fork 0 watcher
Born at : June 16, 2026, 1:51 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
rozetyp/vuln-intel-mcp

Agent-native CVE intelligence as a hosted MCP server: ~332k vulnerabilities fused from NVD, CISA KEV, FIRST EPSS, OSV/GHSA and SSVC, ranked exploitation-first, with a CVE-claim fact-checker that catches the CVEs your agent makes up.

ai-security bug-bounty claude cve epss infosec kev llm mcp mcp-server model-context-protocol nvd security security-research ssvc threat-intelligence vulnerability-intelligence vulnerability-management

Updated: 1 week, 6 days ago
0 stars 0 fork 0 watcher
Born at : June 14, 2026, 10:06 a.m. This repo has been linked 19 different CVEs too.
Profile Photo
hlkysipv/CVE-2026-50751-Check-Point-IKEv1-Authentication-Bypass

CVE-2026-50751 — Check Point IKEv1 Authentication Bypass

Python

Updated: 2 weeks, 2 days ago
1 stars 1 fork 1 watcher
Born at : June 12, 2026, 2:25 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
watchtowrlabs/watchTowr-vs-Check-Point-CVE-2026-50751

None

Python

Updated: 2 weeks, 2 days ago
4 stars 1 fork 1 watcher
Born at : June 10, 2026, 9:10 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
XddXss888/cve-daily

每日CVE漏洞汇总

Updated: 2 weeks, 5 days ago
0 stars 0 fork 0 watcher
Born at : June 9, 2026, 4:54 p.m. This repo has been linked 25 different CVEs too.
Profile Photo
0xBlackash/CVE-2026-50751

CVE-2026-50751

Python

Updated: 2 weeks, 6 days ago
1 stars 0 fork 0 watcher
Born at : June 8, 2026, 2:35 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
WadesWeaponShed/CVE-2026-50751-Mitigation-Scripts

Mitigation scripts for CVE-2026-50751

Shell

Updated: 2 weeks, 6 days ago
1 stars 0 fork 0 watcher
Born at : June 8, 2026, 1:26 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
cpt-ferna02/AVEN

Autonomous CVE intelligence pipeline — exploit hunting, multi-factor risk scoring, live dashboard, and Slack alerts running on a 6-hour schedule.

cve detection-engineering fastapi python security security-automation sigma sqlite threat-intelligence vulnerability-management

Python HTML

Updated: 2 weeks, 5 days ago
0 stars 0 fork 0 watcher
Born at : June 6, 2026, 2:27 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
Webfargo/ansible-playbooks-check_point

Ansible playbooks for Check Point hosts

Jinja

Updated: 2 weeks, 2 days ago
0 stars 0 fork 0 watcher
Born at : May 21, 2026, 10:20 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
tylzars/awesome-vrre-writeups

A collection of Vulnerability Research and Reverse Engineering writeups.

Updated: 1 week ago
20 stars 2 fork 2 watcher
Born at : Dec. 21, 2024, 2:55 p.m. This repo has been linked 180 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-50751 vulnerability anywhere in the article.

  • TheCyberThrone
CISA adds BerriAI LiteLLM & Check Point Security Gateway to KEV

CISA added two vulnerabilities to its Known Exploited Vulnerabilities catalog on June 8, 2026, confirming active exploitation of both. The two entries are CVE-2026-42271 (BerriAI LiteLLM Command Injec ... Read more

Published Date: Jun 09, 2026 (2 weeks, 5 days ago)
  • The Hacker News
Critical Check Point VPN Flaw Exploited to Bypass Passwords in IKEv1 Setups

Check Point has warned of active exploitation of a critical vulnerability impacting Remote Access VPN and Mobile Access deployments that are configured to use the deprecated IKEv1 key exchange protoco ... Read more

Published Date: Jun 08, 2026 (2 weeks, 6 days ago)

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2026-50751 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    Jun. 09, 2026

    Action Type Old Value New Value
    Added CPE Configuration OR *cpe:2.3:o:checkpoint:gaia_os:*:*:*:*:*:*:*:* versions from (including) r80.40 up to (excluding) r81.20 *cpe:2.3:o:checkpoint:gaia_os:r81.20:-:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r81.20:take_10:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r81.20:take_101:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r81.20:take_103:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r81.20:take_105:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r81.20:take_111:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r81.20:take_113:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r81.20:take_115:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r81.20:take_118:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r81.20:take_119:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r81.20:take_120:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r81.20:take_122:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r81.20:take_126:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r81.20:take_127:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r81.20:take_14:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r81.20:take_141:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r81.20:take_24:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r81.20:take_26:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r81.20:take_38:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r81.20:take_41:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r81.20:take_43:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r81.20:take_45:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r81.20:take_53:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r81.20:take_54:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r81.20:take_65:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r81.20:take_70:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r81.20:take_76:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r81.20:take_79:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r81.20:take_8:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r81.20:take_84:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r81.20:take_89:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r81.20:take_90:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r81.20:take_92:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r81.20:take_96:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r81.20:take_98:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r81.20:take_99:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r82:-:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r82:take_10:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r82:take_103:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r82:take_12:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r82:take_14:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r82:take_18:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r82:take_19:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r82:take_25:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r82:take_33:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r82:take_34:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r82:take_36:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r82:take_39:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r82:take_41:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r82:take_43:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r82:take_44:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r82:take_60:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r82:take_73:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r82:take_91:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r82.10:-:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r82.10:take_19:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_os:r82.10:take_6:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:checkpoint:gaia_embedded:*:*:*:*:*:*:*:* versions from (including) r80.20.00 up to (excluding) r81.10.17 *cpe:2.3:o:checkpoint:gaia_embedded:r81.10.17:-:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_embedded:r81.10.17:build_996004508:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_embedded:r81.10.17:build_996004620:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_embedded:r81.10.17:build_996004653:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_embedded:r81.10.17:build_996004721:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_embedded:r81.10.17:build_996004892:*:*:*:*:*:* OR cpe:2.3:h:checkpoint:quantum_spark_1530:-:*:*:*:*:*:*:* cpe:2.3:h:checkpoint:quantum_spark_1550:-:*:*:*:*:*:*:* cpe:2.3:h:checkpoint:quantum_spark_1570:-:*:*:*:*:*:*:* cpe:2.3:h:checkpoint:quantum_spark_1570r:-:*:*:*:*:*:*:* cpe:2.3:h:checkpoint:quantum_spark_1590:-:*:*:*:*:*:*:* cpe:2.3:h:checkpoint:quantum_spark_1595r:-:*:*:*:*:*:*:* cpe:2.3:h:checkpoint:quantum_spark_1600:-:*:*:*:*:*:*:* cpe:2.3:h:checkpoint:quantum_spark_1800:-:*:*:*:*:*:*:* cpe:2.3:h:checkpoint:quantum_spark_1900:-:*:*:*:*:*:*:* cpe:2.3:h:checkpoint:quantum_spark_2000:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:checkpoint:gaia_embedded:*:*:*:*:*:*:*:* versions from (including) r80.20.00 up to (excluding) r82.00.10 *cpe:2.3:o:checkpoint:gaia_embedded:r82.00.10:-:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_embedded:r82.00.10:build_998001559:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_embedded:r82.00.10:build_998001562:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_embedded:r82.00.10:build_998002110:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_embedded:r82.00.10:build_998002112:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_embedded:r82.00.10:build_998002133:*:*:*:*:*:* *cpe:2.3:o:checkpoint:gaia_embedded:r82.00.10:build_998002203:*:*:*:*:*:* OR cpe:2.3:h:checkpoint:quantum_spark_1535:-:*:*:*:*:*:*:* cpe:2.3:h:checkpoint:quantum_spark_1555:-:*:*:*:*:*:*:* cpe:2.3:h:checkpoint:quantum_spark_1575:-:*:*:*:*:*:*:* cpe:2.3:h:checkpoint:quantum_spark_1575r:-:*:*:*:*:*:*:* cpe:2.3:h:checkpoint:quantum_spark_2530:-:*:*:*:*:*:*:* cpe:2.3:h:checkpoint:quantum_spark_2550:-:*:*:*:*:*:*:* cpe:2.3:h:checkpoint:quantum_spark_2560:-:*:*:*:*:*:*:* cpe:2.3:h:checkpoint:quantum_spark_2570:-:*:*:*:*:*:*:* cpe:2.3:h:checkpoint:quantum_spark_2580:-:*:*:*:*:*:*:* cpe:2.3:h:checkpoint:quantum_spark_2590:-:*:*:*:*:*:*:*
    Added Reference Type CISA-ADP: https://blog.checkpoint.com/security/check-point-releases-important-hotfix-for-vulnerabilities-in-deprecated-ikev1-vpn-protocol/ Types: Vendor Advisory
    Added Reference Type Check Point Software Technologies Ltd.: https://support.checkpoint.com/results/sk/sk185033 Types: Mitigation, Patch, Vendor Advisory
    Added Reference Type CISA-ADP: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-50751 Types: US Government Resource
  • CVE CISA KEV Update by 9119a7d8-5eab-497f-8521-727c672e3725

    Jun. 08, 2026

    Action Type Old Value New Value
    Added Date Added 2026-06-08
    Added Due Date 2026-06-08
    Added Required Action 2026-06-08
    Added Vulnerability Name 2026-06-08
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Jun. 08, 2026

    Action Type Old Value New Value
    Added Reference https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-50751
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Jun. 08, 2026

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N
    Added Reference https://blog.checkpoint.com/security/check-point-releases-important-hotfix-for-vulnerabilities-in-deprecated-ikev1-vpn-protocol/
  • New CVE Received by [email protected]

    Jun. 08, 2026

    Action Type Old Value New Value
    Added Description 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.
    Added CWE CWE-287
    Added Reference https://support.checkpoint.com/results/sk/sk185033
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CVSS
Vulnerability Scoring Details
Base CVSS Score: 9.3
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact