CVE-2026-50752: checkpoint quantum_security_gateway_firmware Improper Certificate Validation
Vulnerability summary
CVE-2026-50752 is a high (CVSS 7.4) Improper Certificate Validation vulnerability in checkpoint quantum_security_gateway_firmware. EPSS estimates a 0.26% chance of exploitation in the next 30 days, higher than 16.5% of scored vulnerabilities.
Timeline
- 08-06-2026PublishedVulnerability first disclosed.
- 10-06-2026Last modifiedVulnerability information updated.
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.
CVSS metrics
2 scores · 2 sources · 1 version- NVDNIST7.4HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS trend
Probability
0.26%
Chance of exploitation in the next 30 days
Percentile
17%
Versus all other CVEs
30-day change
-4.75 pp
From 5.00% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Checkpoint2 products
- quantum_security_gateway_firmwareR82.10 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
- spark firewallsR80.20.X, R81.10.X, and R82.00.X
1 vendor · 2 products