Unauthenticated code execution via VPN certificate decoding
Published Sep 9, 2026 · Updated Sep 10, 2026
Heap-based buffer overflow in Check Point Quantum Security Gateway and Quantum Security Management allows remote attackers to execute code. The VPN certificate ASN.1 decoder writes beyond a heap allocation while processing attacker-controlled certificate data; Check Point has not disclosed the responsible function or failed bounds check. No authentication or user interaction is required, and successful exploitation runs code in the affected gateway or management-server context.
Summary
What happened
Heap-based buffer overflow in Check Point Quantum Security Gateway and Quantum Security Management allows remote attackers to execute code. The VPN certificate ASN.1 decoder writes beyond a heap allocation while processing attacker-controlled certificate data; Check Point has not disclosed the responsible function or failed bounds check. No authentication or user interaction is required, and successful exploitation runs code in the affected gateway or management-server context.
The record
- CVE
- CVE-2026-85103
- Published
- Sep 9, 2026
- Updated
- Sep 10, 2026
- Vendor
- Check Point Software Technologies Ltd.
- Product
- Quantum Security Gateway
- Classifications
- CWE-122, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 9, 2026CVE publishedPublication date reported by the CVE source.
- Sep 10, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=R81.20 with Jumbo Hotfix Take 165 or below
- Affected versionversion=R82.10 with Jumbo Hotfix Take 43 or below
- Affected versionversion=R82 with Jumbo Hotfix Take 125 or below
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo