CVE-2026-48131

High

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).

SeverityHigh
CVSS8.1
Exploit probability86. percentile2.7%
ProductQuantum Security Gateway
PublishedMay 26, 2026
First seenMay 26, 2026
Weakness typeCWE-122CWE-122

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
checkpoint Quantum Security GatewayR82.10 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—

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CVE-2026-48131 · Quantum Security Gateway · Dark Radar