---
id: CVE-2026-85103
title: >-
  A heap-based buffer overflow in VPN certificate ASN.1 decoding may allow an
  unauthenticated remote attacker to execute arbitrary code on Check Point
  Quantum Security Management and Quantum Security Gateway systems.
summary: >-
  A heap-based buffer overflow in VPN certificate ASN.1 decoding may allow an
  unauthenticated remote attacker to execute arbitrary code on Check Point
  Quantum Security Management and Quantum Security Gateway systems.
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-122
vendor: checkpoint
product: Quantum Security Gateway
affected:
  - quantum_security_gateway R82.10 with Jumbo Hotfix Take 43 or below
  - quantum_security_gateway R82 with Jumbo Hotfix Take 125 or below
  - quantum_security_gateway R81.20 with Jumbo Hotfix Take 165 or below
  - quantum_security_management R82.10 with Jumbo Hotfix Take 43 or below
  - quantum_security_management R82 with Jumbo Hotfix Take 125 or below
  - quantum_security_management R81.20 with Jumbo Hotfix Take 165 or below
published: '2026-09-09'
updated: '2026-09-10'
sourceUpdated: '2026-09-10T04:18:18.390'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-85103'
references:
  - url: 'https://support.checkpoint.com/results/sk/sk1000118'
    label: cve@checkpoint.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-09-09T15:14:17.016329Z'
ingestedAt: '2026-09-09T13:09:45.300Z'
epss: 0.00361
epssPercentile: 0.29925
---

## Overview

A heap-based buffer overflow in VPN certificate ASN.1 decoding may allow an unauthenticated remote attacker to execute arbitrary code on Check Point Quantum Security Management and Quantum Security Gateway systems.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.