CVE Watchtower

CVE-2026-85102Checkpoint Gaia Embedded >= r81.10.00 and < r81.10.17

NVDCVSS scored by cve@checkpoint.com

Vulnerability Summary

Improper certificate trust validation during VPN negotiation in Check Point Quantum Security Gateway may allow an unauthenticated remote attacker to execute arbitrary code on the Gateway.
Severity Level
CRITICAL(9.8)
Published Date
Sep 9, 2026
Last Modified
Sep 23, 2026
Exploitation Status
ACTIVE
EPSS Score (30-Day)
54.23%Probability
Root Weakness (CWE)
See the MITRE CWE entry for the full definition of this weakness.
CVSS v3.1 Base Metrics — Score 9.8 (CRITICAL)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

Affected & Patched Versions

Affected Versions
  • Checkpoint Gaia Embedded >= r81.10.00 and < r81.10.17
  • Checkpoint Gaia Embedded >= r82.00.00 and < r82.00.10
  • Checkpoint Gaia Embedded
  • Checkpoint Gaia Os >= r80 and < r81.10
  • Checkpoint Gaia Os
Patched Versions
  • Checkpoint Gaia Embedded r81.10.17
  • Checkpoint Gaia Embedded r82.00.10
  • Checkpoint Gaia Os r81.10

What to do

Patch now. CISA lists this flaw as exploited in the wild and set a federal remediation deadline of Sep 25, 2026.

  1. Check whether you run Checkpoint Gaia Embedded >= r81.10.00 and < r81.10.17 and which version.
  2. Update to a patched version listed above, then confirm the new version.
  3. Review logs and exposed services for signs of earlier compromise.

CISA required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

CISA KEV Status

Listed in Known Exploited Vulnerabilities
Added: Sep 22, 2026
Remediation due: Sep 25, 2026 (deadline passed)

Timeline

  • Sep 9, 2026Published
  • Sep 22, 2026Added to CISA KEV catalog
  • Sep 23, 2026Record last modified
  • Sep 25, 2026KEV remediation due date

Score, severity and exploitation changes are tracked from the day Watchtower started logging them.

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Data last checked: Nov 14, 2026 16:07 UTC