Check Point Security Gateway Improper Authentication Vulnerability

Check Point Security Gateway

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. Added to CISA KEV on 2026-06-08 (federal deadline 2026-06-11).

First seen: 8 Jun 2026
Last update: 8 Jun 2026, 12:00 UTC
Identifiers: CVE-2026-50751
Source: CISA KEV
On the menu as: Microsoft Office
VPN & firewalls

Check this repository for exposure to one security incident from pwned.coffee. Report first, change nothing until I say so.

## Check Point Security Gateway Improper Authentication Vulnerability
Severity: critical, exploited in the wild. Patch status: patched.
Affected: Check Point Security Gateway
Ids: CVE-2026-50751

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. Added to CISA KEV on 2026-06-08 (federal deadline 2026-06-11).

## Steps
1. This touches infrastructure (office, vpn-edge). Look in terraform, ansible, cloud-init, Dockerfiles and docs for the product and version we run. If it isn't in the repo, say so and list what a human should check on the box.

## Report
A table: file, product or package, version in use, affected yes/no, exact fix. Then anything a human has to check outside the repo.

If you have the pwned.coffee MCP server (https://pwned.coffee/mcp), call lookup_cve("CVE-2026-50751") for the latest, and check_repo with this repo's lockfiles, Dockerfiles and workflows for a full receipt.
Sources: https://blog.checkpoint.com/security/check-point-releases-important-hotfix-for-vulnerabilities-in-deprecated-ikev1-vpn-protocol/ https://nvd.nist.gov/vuln/detail/CVE-2026-50751 https://support.checkpoint.com/results/sk/sk185033?_gl=1*1wqeqhc*_gcl_au*MTI1MzE5MjI2LjE3ODA5MzQ1NTM.
https://pwned.coffee/i/check-point-security-gateway-improper-authentication-vul-cve-2026-50751

Sources

Totalone very hot coffee