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Critical · 9.3 Known exploited · Ransomware Scanner template Public exploit CVE-2026-50751 EUVD-2026-35047GHSA-jqxh-x9f5-wcgw

User Authentication Bypass in VPN Remote Access and Mobile Access

Published Jun 8, 2026 · Updated Aug 4, 2026 · Assigned by checkpoint

Vendor: Check Point Product: Quantum Security Gateway Product: Spark Firewalls Category: Network devices

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.

Affected products

VendorProductAffectedFixed
checkpoint Quantum Security Gateway R82.10 with Jumbo Hotfix Take 19 or below, R82 with Jumbo Hotfix Take 103 or below, R81.20 with Jumbo Hotfix Take 141 or below, R81.10, R81, and R80.40 —
checkpoint Spark Firewalls R80.20.X, R81.10.X, and R82.00.X —

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 8 repositories

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Automated scanner template

A ready-made Nuclei template detects this vulnerability automatically. Vulnerabilities with public scanner templates are typically probed across the internet soon after the template appears — exposed systems should be patched first.

Source: projectdiscovery/nuclei-templates (MIT) — updated daily. Only links are listed.

Advisories 2

References