Vulnerability Intelligence Report
VPND IKE Fragment Reassembly - Heap Out-of-Bounds Write via Sequence Number Zero
CVE-2026-48131
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).
No Active Exploit Signals
CVSS Base Score
8.1
HIGH
Exploitability:2.3
Impact Score:5.9
EPSS Probability:2.66%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-122 ↗CWE-122: Heap-based Buffer Overflow
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| checkpoint | Quantum Security Gateway | R82.10 with Jumbo Hotfix Take 6 or below (affected), R82 with Jumbo Hotfix Take 91 or below (affected), R81.20 with Jumbo Hotfix Take 127 or below (affected), All releases from R81.10 and below (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
2.658%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Check Point Software Ltd. · Vendor · Israel |
| Reserved | 2026-05-20T19:29:00 |
| Published | 2026-05-26T12:56:08 |
| Last Updated | 2026-05-26T15:18:43 |
Community Chatter & Buzz