CVE-2026-48131— VPND IKE Fragment Reassembly - Heap Out-of-Bounds Write via Sequence Number Zero
Possible ATT&CK Techniques 1AI
T1499 · Endpoint Denial of ServiceAffected Version Matrix 4
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| 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 |
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I. Basic Information for CVE-2026-48131
Vulnerability Information
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Vulnerability Title
VPND IKE Fragment Reassembly - Heap Out-of-Bounds Write via Sequence Number Zero
Source: NVD (National Vulnerability Database)
Vulnerability Description
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).
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
堆缓冲区溢出
Source: NVD (National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| checkpoint | Quantum Security Gateway | R82.10 with Jumbo Hotfix Take 6 or below | - |
II. Public POCs for CVE-2026-48131
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-48131 (1)
Same Patch Batch · checkpoint · 2026-05-26 · 6 CVEs total
| CVE-2026-48132 | 8.1 HIGH | VPN service may restart unexpectedly when processing IKE traffic over NAT-T 4500/UDP |
| CVE-2026-48133 | 7.5 HIGH | Identity Awareness Captive Portal - Unauthenticated Local File Inclusion |
| CVE-2026-48134 | 5.6 MEDIUM | SQL injection issue in UserCheck Portal when DLP Software Blade is active |
| CVE-2026-48135 | 5.3 MEDIUM | HTTP service can incorrectly process malformed HTTP requests |
| CVE-2026-48136 | 4.1 MEDIUM | Authenticated Administrator Role-Based Access Control Bypass in Compliance |
IV. Related Vulnerabilities
Same product: Quantum Security Gateway
Same vendor: checkpoint
- CVE-2026-48136
Authenticated Administrator Role-Based Access Control Bypass - CVE-2026-48135
HTTP service can incorrectly process malformed HTTP requests - CVE-2026-48134
SQL injection issue in UserCheck Portal when DLP Software Bl - CVE-2026-48133
Identity Awareness Captive Portal - Unauthenticated Local Fi - CVE-2026-48132
VPN service may restart unexpectedly when processing IKE tra
Same weakness: CWE-122
- CVE-2026-4391
TeamSpeak 3 Server ECC Key heap-based overflow - CVE-2026-8175
Multiple vulnerabilities in Aspera applications. - CVE-2026-9605
GNU libredwg Dwgbmp Utility bits.c bit_read_RC heap-based ov - CVE-2026-44983
smallbitvec: Safe API Triggered Heap Buffer Overflow via Int - CVE-2026-8834
IBM HTTP Server is affected by multiple vulnerabilities
V. Comments for CVE-2026-48131
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