VPND IKE Fragment Reassembly - Heap Out-of-Bounds Write via Sequence Number Zero
Priority MEDIUM 40CWE-122Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- 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
The VPN service may mishandle an unexpected IKE fragment value received on the IKE port 500/UDP during the early stage of a connection attempt. This can cause the service to terminate unexpectedly, resulting in denial of service (temporary disruption of VPN-related functionality).
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.02658 85th 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
- No
- Technical impact
- Partial
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 6 or below; R82 with Jumbo Hotfix Take 91 or below; R81.20 with Jumbo Hotfix Take 127 or below; All releases from R81.10 and below | — | No fix listed | CNA |
- Quantum Security Gateway VendorCheck Point Affected R82.10 with Jumbo Hotfix Take 6 or below; R82 with Jumbo Hotfix Take 91 or below; R81.20 with Jumbo Hotfix Take 127 or below; All releases from R81.10 and 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-2026-48131
- 2026-10-03 Alias added: GHSA-4qg4-f998-wjmm
- 2026-10-25 EPSS moved to the 50th–90th percentile
- 2026-10-25 Priority changed: LOW → MEDIUM
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-2026-48131 · CVE Program
- CVE-2026-48131 · NVD
- FIRST EPSS
- GHSA-4qg4-f998-wjmm · 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