CVE-2026-50752Certificate Validation Bypass in VPN Site-to-Site Connections Using IKEv1
Updated under an hour ago ()
Does this affect you?
It affects checkpoint Quantum Security Gateway and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.4 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- Weakness (CWE)
- CWE-295
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- checkpoint
- NVD analysis
- Awaiting Analysis
- Record last updated
- Jun 10, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
checkpoint Quantum Security Gateway checkpoint:quantum_security_gateway (from the name) | R82.10 with Jumbo Hotfix Take 19 or below; R82 with Jumbo Hotfix Take 103 or below; R81.20 with Jumbo Hotfix Take 141 or below; R81.10, R81, and R80.40 | CNA record |
checkpoint Spark Firewalls checkpoint:spark_firewalls (from the name) | R80.20.X, R81.10.X, and R82.00.X | CNA record |
References
- https://support.checkpoint.com/results/sk/sk185035
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.