CVE & CISA-KEV Catalog

CVE-2026-85102

CRITICALCISA KEVEPSS 94th pctl
9.8
CVSS v3
NVD

Description

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.

CWE-295Improper Certificate Validation

How to fix

Remediation Available
gaia embeddedNVD
Affected:>= r81.10.00, < r81.10.17Fixed in:r81.10.17CVE-2026-85102derived from NVD
Affected:>= r82.00.00, < r82.00.10Fixed in:r82.00.10CVE-2026-85102derived from NVD
gaia osNVD
Affected:>= r80, < r81.10Fixed in:r81.10CVE-2026-85102derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

7.55%probability of exploitation in 30 days
94thpercentile

High risk: more likely to be exploited than 94% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

Remediation due: 2026-09-25

References

Vendor Advisory1
Government Resource1

Related Vulnerabilities

Other CWE-295 (Improper Certificate Validation) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2015-4000Low3.7100%-Fix
CVE-2020-0601High8.189%KEVFix
CVE-2009-3555Critical9.887%-Fix
CVE-2022-26923High8.884%KEVFix
CVE-2023-27823Critical9.854%--
CVE-2022-42979High8.824%--

Common questions

How do I fix CVE-2026-85102?

Published advisories record a fix for 2 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2026-85102 being actively exploited?

Yes. CVE-2026-85102 is listed in the CISA Known Exploited Vulnerabilities catalog, which means exploitation has been observed in the wild. US federal agencies were required to remediate it by 2026-09-25. Treat it as a priority whatever its CVSS score says.

How severe is CVE-2026-85102?

CVE-2026-85102 has a CVSS v3 base score of 9.8, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2026-85102 affect?

Published advisories record a fix for gaia embedded (NVD), gaia os (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

Embed a live status badge for CVE-2026-85102
CVE-2026-85102 severity badge

Markdown

[![CVE-2026-85102](https://tridentstack.com/cve/badge/CVE-2026-85102.svg)](https://tridentstack.com/cve/CVE-2026-85102)

HTML

<a href="https://tridentstack.com/cve/CVE-2026-85102"><img src="https://tridentstack.com/cve/badge/CVE-2026-85102.svg" alt="CVE-2026-85102"></a>

This vulnerability is actively exploited in the wild

TridentStack Control detects known-exploited CVEs across your Windows, macOS, and Linux fleet and prioritizes their patches. 200 endpoints free forever.

Find exploited CVEs on your endpoints, freeStart freeThis CVE lookup is free and always will be.

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-09-23.