CISA KEV entry
CVE-2026-50751Check Point Security Gateway Improper Authentication Vulnerability
Check Point Security Gateway. Added to the CISA Known Exploited Vulnerabilities catalogue on 8 June 2026.
Data status: a source is stale
Last synced CISA catalogue version 2026.11.04 (released 4 November 2026) 1,768 entries Updated manually
- Date added
- 2026-06-08
- Federal due date
- 2026-06-11 3 days after it was added; passed at the sync of 2026-11-05
- Known ransomware use
- Known
- Forensic triage (BOD 26-04)
- No
- CVSS
- 9.3 Critical CVSS 3.1, scored by CISA ADP
- EPSS
- 85.34% percentile 99.7, scored 2026-11-04
- CISA SSVC
- Exploitation active, automatable yes, technical impact total
- NVD status
- Analyzed published 2026-06-08
BOD 26-04 remediation window
With CISA's SSVC answers for this CVE (automatable: yes, technical impact: total), BOD 26-04 Table 1 gives 3 days and forensic triage on a publicly exposed asset (row 1) and 3 days and forensic triage on an asset that is not publicly exposed (row 9) S06. The catalogue due date, 3 days after the date added, was set before BOD 26-04 took effect on 10 June 2026 S06. The directive binds US federal civilian executive branch agencies only.
What CISA says
Short description
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.
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.
Notes
https://blog.checkpoint.com/security/check-point-releases-important-hotfix-for-vulnerabilities-in-deprecated-ikev1-vpn-protocol/ ; https://support.checkpoint.com/results/sk/sk185033?_gl=1*1wqeqhc*_gcl_au*MTI1MzE5MjI2LjE3ODA5MzQ1NTM. ; https://nvd.nist.gov/vuln/detail/CVE-2026-50751
CWE in the catalogue
CWE-287
Official links
- CISA KEV catalogue entry cisa.gov
- NVD record nvd.nist.gov
Vendor advisory and patch links
References NVD tags Vendor Advisory or Patch, exactly as NVD lists them.
- https://support.checkpoint.com/results/sk/sk185033 Mitigation, Patch, Vendor Advisory
- https://blog.checkpoint.com/security/check-point-releases-important-hotfix-for-vulnerabilities-in-deprecated-ikev1-vpn-protocol/ Vendor Advisory
Links in CISA's notes
NVD details
- CWE (NVD)
- CWE-287 by cve@checkpoint.com
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N- CVSS versions in NVD
- V31
- Last modified in NVD
- 2026-08-04T05:16:39.710
Where each value comes from
| Field | Source | Fetched, UTC | State |
|---|---|---|---|
| Catalogue fields | CISA KEV JSON, version 2026.11.04 | 2026-11-05 11:38 | current |
| NVD published, status, CVSS, CWE, vendor links | NVD CVE API 2.0; CVSS: NVD (CISA ADP) | 2026-11-03 12:37 | current at 2026-11-05 11:38 |
| EPSS | FIRST EPSS API, scores of 2026-11-04 | 2026-11-05 11:38 | current |
| CISA SSVC | CISA ADP (via NVD), record of 2026-06-08 | 2026-11-03 12:37 | current |
This product uses data from the NVD API but is not endorsed or certified by the NVD. CISA does not endorse Sysprobs. Methodology.