Heap-based Buffer Overflow in VPN Certificate ASN.1 Decoding
Priority MEDIUM 56CWE-122Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-122 and the CVSS impact.
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.04287 91st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Check Point | 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 | — | No fix listed | CNA |
| Check Point | Quantum Security Management | 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 | — | No fix listed | CNA |
- Quantum Security Gateway VendorCheck Point Affected 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 Fixed in — No fix listed CNA
- Quantum Security Management VendorCheck Point Affected 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 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-85103
- 2026-10-03 Alias added: GHSA-g4cm-76f6-qvmc
- 2026-10-19 EPSS moved to the 90th–95th percentile
References
More Check Point vulnerabilities
- TI-2026-63071 Directory Traversal and File upload allows execution of arbitrary script on the Management Server KEVCVSS 3.1CRITICAL 9.8
- TI-2026-58455 Improper Certificate Validation in Quantum Security Gateway KEVCVSS 3.1CRITICAL 9.8
- TI-2014-05975 GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed… KEVCVSS 3.1CRITICAL 9.8
- TI-2014-05157 GNU Bash through 4.3 processes trailing strings after function definitions in the values… KEVCVSS 3.1CRITICAL 9.8
- TI-2026-37414 User Authentication Bypass in VPN Remote Access and Mobile Access KEVCVSS 3.1CRITICAL 9.3
- TI-2026-13573 Authentication Bypass in the SmartConsole Login Process Using an Application Token KEVCVSS 4.0CRITICAL 9.3
Sources
- CVE-2026-85103 · CVE Program
- CVE-2026-85103 · NVD
- FIRST EPSS
- GHSA-g4cm-76f6-qvmc · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences