CVE-2026-50752— Certificate Validation Bypass in VPN Site-to-Site Connections Using IKEv1
Possible ATT&CK Techniques 1AI
T1557 · Adversary-in-the-MiddleAffected Version Matrix 5
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| checkpoint | Quantum Security Gateway | R82.10 with Jumbo Hotfix Take 19 or below | affected |
R82 with Jumbo Hotfix Take 103 or below | affected | ||
R81.20 with Jumbo Hotfix Take 141 or below | affected | ||
R81.10, R81, and R80.40 | affected | ||
| checkpoint | Spark Firewalls | R80.20.X, R81.10.X, and R82.00.X | affected |
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2026-50752
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Certificate Validation Bypass in VPN Site-to-Site Connections Using IKEv1
Source: NVD (National Vulnerability Database)
Vulnerability Description
A weakness in the certificate validation logic of the deprecated IKEv1 key exchange may allow an unauthenticated attacker positioned as a man-in-the-middle to bypass certificate validation in VPN site-to-site connections that use certificate-based authentication. Successful exploitation could allow interception or modification of traffic traversing the VPN tunnel.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
证书验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Check Point Quantum Security Gateway和Check Point Spark Firewalls 信任管理问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Check Point Quantum Security Gateway和Check Point Spark Firewalls都是以色列Check Point公司的产品。Check Point Quantum Security Gateway是一系列企业级安全网关设备。Check Point Spark Firewalls是一系列面向中小企业和分支机构的安全防火墙设备。 Check Point Quantum Security Gateway和Check Point Spark Firewalls存在信
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| checkpoint | Quantum Security Gateway | R82.10 with Jumbo Hotfix Take 19 or below | - | |
| checkpoint | Spark Firewalls | R80.20.X, R81.10.X, and R82.00.X | - |
II. Public POCs for CVE-2026-50752
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-50752
请登录查看更多情报信息。
Vendor Advisories for CVE-2026-50752 (1)
IV. Related Vulnerabilities
Same product: Quantum Security Gateway
- CVE-2026-50751
User Authentication Bypass in VPN Remote Access and Mobile A - CVE-2026-48135
HTTP service can incorrectly process malformed HTTP requests - CVE-2026-48134
SQL injection issue in UserCheck Portal when DLP Software Bl - CVE-2026-48133
Identity Awareness Captive Portal - Unauthenticated Local Fi - CVE-2026-48132
VPN service may restart unexpectedly when processing IKE tra
Same vendor: checkpoint
- CVE-2026-10847
Local Privilege Escalation vulnerability in Check Point Iden - CVE-2026-50751
User Authentication Bypass in VPN Remote Access and Mobile A - CVE-2026-48136
Authenticated Administrator Role-Based Access Control Bypass - CVE-2026-48135
HTTP service can incorrectly process malformed HTTP requests - CVE-2026-48134
SQL injection issue in UserCheck Portal when DLP Software Bl
Same weakness: CWE-295
- CVE-2026-9697
undici vulnerable to TLS certificate validation bypass via d - CVE-2024-47477
Dell PowerFlex Manager 加密问题漏洞 - CVE-2025-71261
Harvester's SUSE Virtualization Registration Client Vulnerab - CVE-2026-9259
Canon EOS Network Setting Tool 1.5.0 证书验证漏洞 - CVE-2026-9258
Canon EOS Network Setting Tool 1.5.0 SSH主机密钥验证漏洞
V. Comments for CVE-2026-50752
No comments yet