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CVE-2026-50751

User Authentication Bypass in VPN Remote Access and Mobile Access

Published: Jun 8, 2026Updated: Jun 8, 2026 Sources: CVE List NVD
9.3CVSS
CRITICAL

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.

EPSS Score
0.0%
Top 98.8%
CISA KEV
Active Exploitation
Since Jun 8, 2026
Exploits
No Known Exploits
Remediation
No Fix Available

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:CC:HI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:LIntegrity
Low
A:NAvailability
None

Weaknesses

Affected Products

Quantum Security Gateway
checkpoint
Spark Firewalls
checkpoint

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

CISA Known Exploited Vulnerability
Added to KEV:Jun 8, 2026
Remediation due:Jun 11, 2026

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.

MITRE ATT&CK

2 techniques
Initial Access
View detailed technique mapping

References

Timeline

Added to CISA KEV
Jun 8, 2026
Published
Jun 8, 2026
Last Updated
Jun 8, 2026
6

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