CVE-2026-85102

What it is

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.

At a glance

Exploitability

Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.

In the wild

CISA lists this as exploited in real attacks. Treat as urgent.

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2026-09-03 06:38 UTC ReservedThe CVE id was reserved by its CNA
2. 2026-09-09 13:20 UTC PublishedDisclosed publicly on CVE.org and NVD
3. 2026-09-22 Exploited in the wildAdded to CISA's Known Exploited Vulnerabilities list
4. 2026-09-23 18:22 UTC Last updatedMost recent change to the record
5. 2026-09-25 Remediation deadlineCISA's due date for federal agencies to fix it

Details

Published

2026-09-09 13:20 UTC

Last modified

2026-09-23 18:22 UTC

Added to CISA KEV

2026-09-22

Exploit probability

54.1% · EPSS, next 30 days

Weakness

CWE-295 · Improper certificate validation

Record status

Analyzed

Affected

• Checkpoint Gaia Embedded < r81.10.17
• Checkpoint Gaia Embedded < r82.00.10
• Checkpoint Gaia Embedded r81.10.17
• Checkpoint Gaia Embedded r82.00.10
• Checkpoint Gaia Os < r81.10
• Checkpoint Gaia Os r81.10
• Checkpoint Gaia Os r81.20
• Checkpoint Gaia Os r82

Attack profile CVSS 3.1 · 9.8

Attack vector

Network

Complexity

Low

Privileges needed

None

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High