Vulnerability details
CVE-2026-50751
Actively exploited
checkpoint Quantum Security Gatewaycheckpoint Spark Firewalls
User Authentication Bypass in VPN Remote Access and Mobile Access
CVSS 3.1
9.3Critical
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.3Critical | 3.1 | CISA ADP / Vulnrichment (CISA-ADP) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| checkpoint | Quantum Security Gateway | R81.10, R81, and R80.40 | CVEProject cvelistV5 (CNA) |
| checkpoint | Quantum Security Gateway | R81.20 with Jumbo Hotfix Take 141 or below | CVEProject cvelistV5 (CNA) |
| checkpoint | Quantum Security Gateway | R82 with Jumbo Hotfix Take 103 or below | CVEProject cvelistV5 (CNA) |
| checkpoint | Quantum Security Gateway | R82.10 with Jumbo Hotfix Take 19 or below | CVEProject cvelistV5 (CNA) |
| checkpoint | Spark Firewalls | R80.20.X, R81.10.X, and R82.00.X | CVEProject cvelistV5 (CNA) |
References and advisories
3- https://support.checkpoint.com/results/sk/sk185033
- 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 government-resource
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Details
- Published
- 2026-06-08
- Last updated
- 2026-08-04
- State
- Published
- Assigner (CNA)
- checkpoint
- Kolun priority
- 84 · Critical
CISA KEV catalog
- Date added
- 2026-06-08
- Due date
- 2026-06-11
- Used in ransomware
- Yes
Exploit prediction (EPSS)
85.34%
Probability of exploitation in 30 days
99.7%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- Active
- Technical impact
- Total
Weaknesses (CWE)
- CWE-287Improper Authentication.