CVE-2026-48131 (GCVE-0-2026-48131)

Vulnerability from cvelistv5 – Published: 2026-05-26 12:56 – Updated: 2026-05-26 15:18
VLAI?
Title
VPND IKE Fragment Reassembly - Heap Out-of-Bounds Write via Sequence Number Zero
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).
Severity ?
8.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version
checkpoint Quantum Security Gateway Affected: 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
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      "references": [
        {
          "url": "https://support.checkpoint.com/results/sk/sk184981"
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      "title": "VPND IKE Fragment Reassembly - Heap Out-of-Bounds Write via Sequence Number Zero"
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.