CVE-2026-50752
📛 CVE Title
(no title)
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.
Overview
- State
- —
- Assigner (CNA)
- —
- CVSS severity
- high
- CVSS score
- 7.4 / 10
- CVSS vector
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N- Effective score
- 7.4 / 10 HIGH source: CNA overview
- CWE(s)
- —
- Reserved
- —
- Published
- —
- Last updated
- —
- Source
- https://www.tenable.com/cve/CVE-2026-50752
- Linked Threat
- CVE-2026-50752 — CVE-2026-50752
NVD triage scoring NVD CVE 2.0
Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.
- NVD published
- 2026-06-08 12:16:32 UTC
- NVD last modified
- 2026-07-23 07:10:00 UTC
- NVD CVSS v3.1
- 7.4 / 10 HIGH source: cve@checkpoint.com
- NVD CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N- Exploitability subscore
- 2.2 / 10
- Impact subscore
- 5.2 / 10
- EPSS score
- 0.0455 (probability of exploitation in next 30 days)
- EPSS percentile
- 90.63% vs all CVEs — higher = more likely to be exploited, as of 2026-08-01
NVD-assigned CWE(s):
CWE-295
(differs from the CNA list above)
NVD / KEV / EPSS data refreshed 2026-08-01 16:32 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.
European Union Vulnerability Database ENISA EUVD
ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.
- EUVD ID
-
EUVD-2026-35046 - Assigner
- checkpoint
- Published
- Jun 8, 2026, 11:00:38 AM
- Updated
- Jun 10, 2026, 1:36:24 PM
- EUVD base score (CVSS 3.1)
-
7.4 / 10
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N - EUVD-reported EPSS
- 4.5500
- Vendors
- checkpoint
- Products
-
Quantum Security Gateway (R81.20 with Jumbo Hotfix Take 141 or below)Quantum Security Gateway (R81.10, R81, and R80.40)Quantum Security Gateway (R82 with Jumbo Hotfix Take 103 or below)Spark Firewalls (R80.20.X, R81.10.X, and R82.00.X)Quantum Security Gateway (R82.10 with Jumbo Hotfix Take 19 or below)
- Aliases
-
GHSA-89xv-5cj4-39m4
ENISA 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.
EUVD references (1)
Vendor references (0)
References embedded in the original CVE record by the assigning CNA.
None in the CVE record.
Web references (7)
DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.
- https://nvd.nist.gov/vuln/detail/CVE-2026-50752 tenable:nvd.nist.gov
- https://support.checkpoint.com/results/sk/sk185035 tenable:support.checkpoint.com
- https://thehackernews.com/2026/06/critical-check-point-vpn-flaw-exploited.html tenable:thehackernews.com
- https://www.bleepingcomputer.com/news/security/check-point-links-vpn-zero-day-attacks-to-qilin-ransomware-gang/ tenable:www.bleepingcomputer.com
- https://www.cve.org/CVERecord?id=CVE-2026-50752 tenable:www.cve.org
- https://www.first.org/epss/ tenable:www.first.org
- https://www.theregister.com/cyber-crime/2026/06/08/attackers-had-month-long-head-start-on-patched-check-point-vpn-zero-day/5252438 tenable:www.theregister.com
NVD-tagged references (1)
Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.
- https://support.checkpoint.com/results/sk/sk185035 cve@checkpoint.com
Remediations (10)
Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.
-
web:app.opencve.io
Remediation No vendor fix or workaround currently provided. OpenCVE Recommended Actions Update Checkpoint firmware to a version that removes support for IKEv1 or applies a patch that addresses the CWE-295 certificate validation flaw in the VPN logic
2026-06-19 02:38 UTC -
web:blog.checkpoint.com
This process identified and enabled the remediation of an additional vulnerability, CVE-2026-50752 . CVE-2026-50752 impacts certificate validation in deprecated IKEv1 key exchange and may allow man-in-the-middle interference with site-to-site VPN communications under specific conditions.
2026-06-19 02:38 UTC -
web:cybersecuritynews.com
Microsoft has officially acknowledged a critical zero-day vulnerability in Microsoft Defender, publicly dubbed "RoguePlanet," and confirmed it is actively developing a security patch to address the flaw.
2026-06-19 02:38 UTC -
web:learn.microsoft.com
Windows 11, version 25H2 is now available for all eligible devices. Devices running Home and Pro editions of Windows 11 that are not managed by IT departments will receive the update to Windows 11, version 25H2 through the machine learning-based intelligent rollout.
2026-06-19 02:38 UTC -
web:nvd.nist.gov
An official website of the United States government Here's how you know
2026-06-19 02:38 UTC -
web:portal.msrc.microsoft.com
The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.
2026-06-19 02:38 UTC -
web:www.computerworld.com
Microsoft says it is considering a patch for a zero-day vulnerability, dubbed YellowKey, that allows attackers with access to a Windows device to bypass Bitlocker encryption protection and read ...
2026-06-19 02:38 UTC -
web:www.malwarebytes.com
Microsoft says it's working on a fix for an unpatched Defender vulnerability that can give attackers the highest level of access on Windows.
2026-06-19 02:38 UTC -
web:www.rapid7.com
Microsoft is publishing 200 vulnerabilities on June 2026 Patch Tuesday, including an HTTP/2 denial of service vulnerability and an elevation of privilege vulnerability in PowerToys.
2026-06-19 02:38 UTC -
web:zecurit.com
Get the complete breakdown of Microsoft's June 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .
2026-06-19 02:38 UTC
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