CVE-2026-50752: checkpoint Quantum Security Gateway · Improper Certificate Validation.
Affects checkpoint Quantum Security GatewaySource CVE Database V5
Not known to be exploited · CVSS 7.4 High.
Data as of 30 Oct 2026, 11:52 UTC
- EPSS
- 5.0% chance of exploitation in 30 days – higher than 92% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 8 Jun 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 24 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| checkpointQuantum Security Gateway | Affected
| Fixed in– |
| checkpointSpark Firewalls | Affected
| Fixed in– |
AI-suggested
Since the vulnerability affects the deprecated IKEv1 key exchange, consider disabling IKEv1 and migrating to IKEv2 if possible as a temporary mitigation. Monitor vendor communications for official fixes or workarounds.
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.