CVE-2026-50751 | User Authentication Bypass in VPN Remote Access and Mobile Access

Exp

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.

Published: 2026-06-08 Last update: 2026-06-09 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-50751 is rated Critical Active Threat (90.1/100): CVSS Critical severity, with high exploitation likelihood (EPSS 11.84%, 94th percentile). CISA KEV confirms active exploitation (added 2026-06-08) affecting Check Point / Security Gateway. an authentication bypass (CWE-287) Unauthenticated remote administrative access may be possible. The CISA remediation deadline has passed—treat as an emergency patch priority.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

CISA KEV Record for CVE-2026-50751

Name: Check Point Security Gateway Improper Authentication Vulnerability · CISA KEV detail

Exploit added: 2026-06-08

Action due: 2026-06-11

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.

Exploit prediction scoring system (EPSS) score for CVE-2026-50751

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-10 17.69% 11.84% -5.85%
2 2026-06-09 0.01% 17.69% +17.68%
3 2026-06-08 — 0.01% —

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-50751

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.3 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 4.7 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2026-50751

GitHub Security Advisory for CVE-2026-50751

GHSA-jqxh-x9f5-wcgw · Severity: critical — A logic flow weakness in Remote Access and Mobile Access certificate validation in deprecated...

Affected software / configurations for CVE-2026-50751

Vendor Product Version Raw CPE
checkpoint gaia_os >= r80.40, < r81.20 cpe:2.3:o:checkpoint:gaia_os:*:*:*:*:*:*:*:*
checkpoint gaia_os r81.20 cpe:2.3:o:checkpoint:gaia_os:r81.20:-:*:*:*:*:*:*
checkpoint gaia_os r81.20 cpe:2.3:o:checkpoint:gaia_os:r81.20:take_10:*:*:*:*:*:*
checkpoint gaia_os r81.20 cpe:2.3:o:checkpoint:gaia_os:r81.20:take_101:*:*:*:*:*:*
checkpoint gaia_os r81.20 cpe:2.3:o:checkpoint:gaia_os:r81.20:take_103:*:*:*:*:*:*
checkpoint gaia_os r81.20 cpe:2.3:o:checkpoint:gaia_os:r81.20:take_105:*:*:*:*:*:*
checkpoint gaia_os r81.20 cpe:2.3:o:checkpoint:gaia_os:r81.20:take_111:*:*:*:*:*:*
checkpoint gaia_os r81.20 cpe:2.3:o:checkpoint:gaia_os:r81.20:take_113:*:*:*:*:*:*
checkpoint gaia_os r81.20 cpe:2.3:o:checkpoint:gaia_os:r81.20:take_115:*:*:*:*:*:*
checkpoint gaia_os r81.20 cpe:2.3:o:checkpoint:gaia_os:r81.20:take_118:*:*:*:*:*:*
checkpoint gaia_os r81.20 cpe:2.3:o:checkpoint:gaia_os:r81.20:take_119:*:*:*:*:*:*
checkpoint gaia_os r81.20 cpe:2.3:o:checkpoint:gaia_os:r81.20:take_120:*:*:*:*:*:*
checkpoint gaia_os r81.20 cpe:2.3:o:checkpoint:gaia_os:r81.20:take_122:*:*:*:*:*:*
checkpoint gaia_os r81.20 cpe:2.3:o:checkpoint:gaia_os:r81.20:take_126:*:*:*:*:*:*
checkpoint gaia_os r81.20 cpe:2.3:o:checkpoint:gaia_os:r81.20:take_127:*:*:*:*:*:*
checkpoint gaia_os r81.20 cpe:2.3:o:checkpoint:gaia_os:r81.20:take_14:*:*:*:*:*:*
checkpoint gaia_os r81.20 cpe:2.3:o:checkpoint:gaia_os:r81.20:take_141:*:*:*:*:*:*
checkpoint gaia_os r81.20 cpe:2.3:o:checkpoint:gaia_os:r81.20:take_24:*:*:*:*:*:*
checkpoint gaia_os r81.20 cpe:2.3:o:checkpoint:gaia_os:r81.20:take_26:*:*:*:*:*:*
checkpoint gaia_os r81.20 cpe:2.3:o:checkpoint:gaia_os:r81.20:take_38:*:*:*:*:*:*
checkpoint gaia_os r81.20 cpe:2.3:o:checkpoint:gaia_os:r81.20:take_41:*:*:*:*:*:*
checkpoint gaia_os r81.20 cpe:2.3:o:checkpoint:gaia_os:r81.20:take_43:*:*:*:*:*:*
checkpoint gaia_os r81.20 cpe:2.3:o:checkpoint:gaia_os:r81.20:take_45:*:*:*:*:*:*
checkpoint gaia_os r81.20 cpe:2.3:o:checkpoint:gaia_os:r81.20:take_53:*:*:*:*:*:*
checkpoint gaia_os r81.20 cpe:2.3:o:checkpoint:gaia_os:r81.20:take_54:*:*:*:*:*:*
checkpoint gaia_os r81.20 cpe:2.3:o:checkpoint:gaia_os:r81.20:take_65:*:*:*:*:*:*
checkpoint gaia_os r81.20 cpe:2.3:o:checkpoint:gaia_os:r81.20:take_70:*:*:*:*:*:*
checkpoint gaia_os r81.20 cpe:2.3:o:checkpoint:gaia_os:r81.20:take_76:*:*:*:*:*:*
checkpoint gaia_os r81.20 cpe:2.3:o:checkpoint:gaia_os:r81.20:take_79:*:*:*:*:*:*
checkpoint gaia_os r81.20 cpe:2.3:o:checkpoint:gaia_os:r81.20:take_8:*:*:*:*:*:*
checkpoint gaia_os r81.20 cpe:2.3:o:checkpoint:gaia_os:r81.20:take_84:*:*:*:*:*:*
checkpoint gaia_os r81.20 cpe:2.3:o:checkpoint:gaia_os:r81.20:take_89:*:*:*:*:*:*
checkpoint gaia_os r81.20 cpe:2.3:o:checkpoint:gaia_os:r81.20:take_90:*:*:*:*:*:*
checkpoint gaia_os r81.20 cpe:2.3:o:checkpoint:gaia_os:r81.20:take_92:*:*:*:*:*:*
checkpoint gaia_os r81.20 cpe:2.3:o:checkpoint:gaia_os:r81.20:take_96:*:*:*:*:*:*
checkpoint gaia_os r81.20 cpe:2.3:o:checkpoint:gaia_os:r81.20:take_98:*:*:*:*:*:*
checkpoint gaia_os r81.20 cpe:2.3:o:checkpoint:gaia_os:r81.20:take_99:*:*:*:*:*:*
checkpoint gaia_os r82 cpe:2.3:o:checkpoint:gaia_os:r82:-:*:*:*:*:*:*
checkpoint gaia_os r82 cpe:2.3:o:checkpoint:gaia_os:r82:take_10:*:*:*:*:*:*
checkpoint gaia_os r82 cpe:2.3:o:checkpoint:gaia_os:r82:take_103:*:*:*:*:*:*
checkpoint gaia_os r82 cpe:2.3:o:checkpoint:gaia_os:r82:take_12:*:*:*:*:*:*
checkpoint gaia_os r82 cpe:2.3:o:checkpoint:gaia_os:r82:take_14:*:*:*:*:*:*
checkpoint gaia_os r82 cpe:2.3:o:checkpoint:gaia_os:r82:take_18:*:*:*:*:*:*
checkpoint gaia_os r82 cpe:2.3:o:checkpoint:gaia_os:r82:take_19:*:*:*:*:*:*
checkpoint gaia_os r82 cpe:2.3:o:checkpoint:gaia_os:r82:take_25:*:*:*:*:*:*
checkpoint gaia_os r82 cpe:2.3:o:checkpoint:gaia_os:r82:take_33:*:*:*:*:*:*
checkpoint gaia_os r82 cpe:2.3:o:checkpoint:gaia_os:r82:take_34:*:*:*:*:*:*
checkpoint gaia_os r82 cpe:2.3:o:checkpoint:gaia_os:r82:take_36:*:*:*:*:*:*
checkpoint gaia_os r82 cpe:2.3:o:checkpoint:gaia_os:r82:take_39:*:*:*:*:*:*
checkpoint gaia_os r82 cpe:2.3:o:checkpoint:gaia_os:r82:take_41:*:*:*:*:*:*
checkpoint gaia_os r82 cpe:2.3:o:checkpoint:gaia_os:r82:take_43:*:*:*:*:*:*
checkpoint gaia_os r82 cpe:2.3:o:checkpoint:gaia_os:r82:take_44:*:*:*:*:*:*
checkpoint gaia_os r82 cpe:2.3:o:checkpoint:gaia_os:r82:take_60:*:*:*:*:*:*
checkpoint gaia_os r82 cpe:2.3:o:checkpoint:gaia_os:r82:take_73:*:*:*:*:*:*
checkpoint gaia_os r82 cpe:2.3:o:checkpoint:gaia_os:r82:take_91:*:*:*:*:*:*
checkpoint gaia_os r82.10 cpe:2.3:o:checkpoint:gaia_os:r82.10:-:*:*:*:*:*:*
checkpoint gaia_os r82.10 cpe:2.3:o:checkpoint:gaia_os:r82.10:take_19:*:*:*:*:*:*
checkpoint gaia_os r82.10 cpe:2.3:o:checkpoint:gaia_os:r82.10:take_6:*:*:*:*:*:*
checkpoint gaia_embedded >= r80.20.00, < r81.10.17 cpe:2.3:o:checkpoint:gaia_embedded:*:*:*:*:*:*:*:*
checkpoint gaia_embedded r81.10.17 cpe:2.3:o:checkpoint:gaia_embedded:r81.10.17:-:*:*:*:*:*:*
checkpoint gaia_embedded r81.10.17 cpe:2.3:o:checkpoint:gaia_embedded:r81.10.17:build_996004508:*:*:*:*:*:*
checkpoint gaia_embedded r81.10.17 cpe:2.3:o:checkpoint:gaia_embedded:r81.10.17:build_996004620:*:*:*:*:*:*
checkpoint gaia_embedded r81.10.17 cpe:2.3:o:checkpoint:gaia_embedded:r81.10.17:build_996004653:*:*:*:*:*:*
checkpoint gaia_embedded r81.10.17 cpe:2.3:o:checkpoint:gaia_embedded:r81.10.17:build_996004721:*:*:*:*:*:*
checkpoint gaia_embedded r81.10.17 cpe:2.3:o:checkpoint:gaia_embedded:r81.10.17:build_996004892:*:*:*:*:*:*
checkpoint gaia_embedded >= r80.20.00, < r82.00.10 cpe:2.3:o:checkpoint:gaia_embedded:*:*:*:*:*:*:*:*
checkpoint gaia_embedded r82.00.10 cpe:2.3:o:checkpoint:gaia_embedded:r82.00.10:-:*:*:*:*:*:*
checkpoint gaia_embedded r82.00.10 cpe:2.3:o:checkpoint:gaia_embedded:r82.00.10:build_998001559:*:*:*:*:*:*
checkpoint gaia_embedded r82.00.10 cpe:2.3:o:checkpoint:gaia_embedded:r82.00.10:build_998001562:*:*:*:*:*:*
checkpoint gaia_embedded r82.00.10 cpe:2.3:o:checkpoint:gaia_embedded:r82.00.10:build_998002110:*:*:*:*:*:*
checkpoint gaia_embedded r82.00.10 cpe:2.3:o:checkpoint:gaia_embedded:r82.00.10:build_998002112:*:*:*:*:*:*
checkpoint gaia_embedded r82.00.10 cpe:2.3:o:checkpoint:gaia_embedded:r82.00.10:build_998002133:*:*:*:*:*:*
checkpoint gaia_embedded r82.00.10 cpe:2.3:o:checkpoint:gaia_embedded:r82.00.10:build_998002203:*:*:*:*:*:*

References for CVE-2026-50751

cvelogic Threat Intelligence