All vulnerabilities
CVE-2026-50751

Check Point Security Gateway Improper Authentication Vulnerability

Check Point Security GatewayNetwork & edge
Open in ThreatlineRecord JSON
CVSS
9.3Critical
ExploitationExploited in the wildAdded to KEV 8 Jun 2026. Known ransomware useCISA KEV
Exploit odds (EPSS)85.3%Chance of exploitation activity in the next 30 days, higher than 99% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Federal deadline11 Jun 2026Remediation due date for US federal agenciesCISA KEV
CISA required actionApply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. CISA KEV

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Timeline

  1. 8 Jun 2026, 11:07 UTCPublishedCVE List
  2. 8 Jun 2026Added to CISA KEVCISA KEV

Public exploit code and templates 1

  • Scanner templateCheck Point IKEv1 Remote-Access VPN - Certificate Authentication BypassNuclei

Listed so defenders can prioritize. Threatline links to the source and does not host exploit code.

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.

Text from CVE List

Affected versions 5

  • Quantum Security Gatewayaffected: R82.10 with Jumbo Hotfix Take 19 or belowCVE List
  • Quantum Security Gatewayaffected: R82 with Jumbo Hotfix Take 103 or belowCVE List
  • Quantum Security Gatewayaffected: R81.20 with Jumbo Hotfix Take 141 or belowCVE List
  • Quantum Security Gatewayaffected: R81.10, R81, and R80.40CVE List
  • Spark Firewallsaffected: R80.20.X, R81.10.X, and R82.00.XCVE List

References 5