CVE-2026-85103 (GCVE-0-2026-85103)

Vulnerability from cvelistv5 – Published: 2026-09-09 13:00 – Updated: 2026-09-10 03:56
VLAI ENISA
Title
Heap-based Buffer Overflow in VPN Certificate ASN.1 Decoding
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
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-09 00:00 UTC
CWE
  • CWE-122 - Heap-based Buffer Overflow.
Assigner
checkpoint CNA under the mitre root
CNA scorecard C 66/100 over 17 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
checkpoint Quantum Security Gateway Affected: R82.10 with Jumbo Hotfix Take 43 or below
Affected: R82 with Jumbo Hotfix Take 125 or below
Affected: R81.20 with Jumbo Hotfix Take 165 or below
guessed Create a notification for this product.
checkpoint Quantum Security Management Affected: R82.10 with Jumbo Hotfix Take 43 or below
Affected: R82 with Jumbo Hotfix Take 125 or below
Affected: R81.20 with Jumbo Hotfix Take 165 or below
guessed Create a notification for this product.
ENISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: d8f5a686-1277-49d5-841d-018225a0345b

Vulnerability ID: CVE-2026-85103

Status: Confirmed

Status Updated: 2026-09-25 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2026-09-25
Asserted: 2026-09-25
Scope
Notes: Affected: Check Point / Quantum Security Gateway, Quantum Security Management | Description: CVE-2026-85103 is a heap-based buffer overflow in ASN.1 certificate decoding that may allow an unauthenticated remote attacker to execute arbitrary code on Check Point Quantum Security Gateway and Security Management systems. | Patched since: 2026/09/07 | Exploitation type: unknown | CWEs: CWE-122 | Origin source: CNW | Notes: https://support.checkpoint.com/results/sk/sk1000118
Evidence

Type: Csirt Report

Signal: Successful Exploitation

Confidence: 75%

Source: enisa-cnw-kev

Details
Cwes CWE-122
Euvd EUVD-2026-75010
Notes https://support.checkpoint.com/results/sk/sk1000118
Catalog ENISA / EU CSIRTs Network (CNW) KEV JSON
Product Quantum Security Gateway, Quantum Security Management
Datereported 2026/09/25
Originsource CNW
Patchedsince 2026/09/07
Vendorproject Check Point
Exploitationtype unknown
Vulnerabilityname
Threatactorsexploiting
References
Created: 2026-11-04 13:00 UTC | Updated: 2026-11-04 13:00 UTC
Show details on NVD website
To clipboard 

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