VPN service may restart unexpectedly when processing IKE traffic over NAT-T 4500/UDP
Priority MEDIUM 41CWE-125Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
The Security Gateway does not correctly validate a length value in certain IKE packets when NAT-T is used (4500/UDP). As a result, a specially crafted or malformed packet can cause the VPN processing service to terminate unexpectedly, leading to denial of service (temporary interruption of VPN negotiations/traffic).
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.02139 82nd 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
- 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 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-2026-48132
- 2026-10-03 Alias added: GHSA-3h9p-9pvw-73vm
- 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-2026-48132 · CVE Program
- CVE-2026-48132 · NVD
- FIRST EPSS
- GHSA-3h9p-9pvw-73vm · GitHub Advisory Database · CC BY 4.0
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