---
title: "CVE-2026-85103: Check Point Quantum Security Management & Quantum Security Gateway - Remote Code Execution"
description: "Check Point Quantum Security Management and Quantum Security Gateway contain a heap-based buffer overflow caused by improper ASN.1 decoding in VPN certificate processing, letting unauthenticated remote attackers execute arbitrary code."
url: https://panop.io/threat-heartbeat/CVE-2026-85103/
---

# CVE-2026-85103 Check Point Quantum Security Management & Quantum Security Gateway - Remote Code Execution

Check Point Quantum Security Management and Quantum Security Gateway contain a heap-based buffer overflow caused by improper ASN.1 decoding in VPN certificate processing, letting unauthenticated remote attackers execute arbitrary code.

CVSS base score 9.8 /10

Critical

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

3.65% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-85103)

## Details

Type

Remote Code Execution

Impact

Remote Code Execution

CVSS vector

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

Published

9 September 2026

Updated

15 October 2026

Weakness

[CWE-122](https://cwe.mitre.org/data/definitions/122.html)

## Vendor fix

Update to the latest available version.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-85103](https://nvd.nist.gov/vuln/detail/CVE-2026-85103)
- [https://support.checkpoint.com/results/sk/sk1000118](https://support.checkpoint.com/results/sk/sk1000118)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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