CVE-2026-85102: Check Point Multiple Products

Should you act?

Exploited: patch now if you run it

CISA has confirmed exploitation in the wild. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.

Yes, if you run Check Point Multiple Products. CISA added this CVE to its Known Exploited Vulnerabilities catalog on 2026-09-22, which means there is reliable evidence of exploitation in the wild. US federal agencies must remediate by 2026-09-25; treat that as the outer limit, not the target.
EPSS 50.4%, percentile 99: FIRST’s model estimates a 50.4% chance of exploitation activity in the next 30 days, higher than 99% of all scored CVEs (very high). EPSS is a probability, not a verdict.
Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
Editorial verdict: Act now. Check Point: Exploited VPN Gateway and Management RCEs — Check Point shops should patch both gateways and management servers now: each flaw is unauthenticated RCE, both are exploited, and fixing one tier does not fix the other.

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.

CISA’s summary

Check Point Security Gateway and Check Point Spark Firewall using Site to Site VPN or Remote Access VPN contain an improper certificate validation vulnerability which could allow an unauthenticated remote attacker to execute arbitrary code on the Gateway.

Weakness type: CWE-295.

Product: Check Point Multiple Products · Assigned by: checkpoint · Published: 2026-09-09

Affected and fixed versions

Vendor	Product	Affected versions (per CVE record)
checkpoint	Quantum Security Gateway	R82.10 with Jumbo Hotfix Take 43 or below, R82 with Jumbo Hotfix Take 125 or below, R81.20 with Jumbo Hotfix Take 165 or below

Severity scores

Scored by	CVSS	Score	Vector
checkpoint	3.1	9.8 Critical	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`

Attack vector: network (remotely reachable)
Attack complexity: low
Privileges required: none (no login)
User interaction: none
Scope: unchanged

CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.

Exploitation and urgency

CISA KEV: added 2026-09-22; federal due date 2026-09-25. Known ransomware use: Unknown.
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 SSVC assessment: exploitation active, automatable yes, technical impact total.
FIRST EPSS (model of 2026-10-21): 50.40% probability of exploitation activity in the next 30 days; percentile 99.

Timeline

2026-09-09 — CVE record published by checkpoint
2026-09-09 — erroneo.us brief: Check Point: Exploited VPN Gateway and Management RCEs
2026-09-22 — Added to CISA’s Known Exploited Vulnerabilities catalog
2026-09-23 — CVE record last updated
2026-09-25 — CISA remediation deadline for US federal agencies

Sources and references

Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.