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VulnerabilityPublished Updated

CVE-2026-50752: checkpoint Quantum Security Gateway · Improper Certificate Validation.

Affects checkpoint Quantum Security GatewaySource CVE Database V5

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Not known to be exploited · CVSS 7.4 High.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
7.4High
How severe the flaw is on the 0–10 CVSS scale.
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:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 8 Jun 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

ProductAffectedFixed in
checkpointQuantum Security GatewayAffected
  • R81.10, R81, and R80.40 – R82.10 with Jumbo Hotfix Take 19 or below
4 affected builds
Fixed in–
checkpointSpark FirewallsAffected
  • =R80.20.X, R81.10.X, and R82.00.X
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.

References

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