CVE-2026-50752
Certificate Validation Bypass in VPN Site-to-Site Connections Using IKEv1
HIGH 7.4
En bref
- Source
- NVD
- EPSS
- EPSS 5.00 % · centile 92 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- checkpoint
- Statut NVD
- Awaiting Analysis
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.
Faiblesses (CWE)
- CWE-295 — Validation incorrecte de certificat
Références
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.4 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N | checkpoint |
| CVSS 3.1 | HIGH 7.4 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N | NVD · cve@checkpoint.com (Secondary) |
Références européennes
- ENISA EUVD · EUVD-2026-35046
- GCVE · GCVE-0-2026-50752
Avis du CERT-FR
- CERTFR-2026-AVI-0711 — Multiples vulnérabilités dans les VPN Check Point · cert.ssi.gouv.fr
Produits affectés
| Produit | Versions |
|---|---|
| checkpoint · Quantum Security Gateway | affected 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 |
| checkpoint · Spark Firewalls | affected R80.20.X, R81.10.X, and R82.00.X |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |