CVE-2026-48131

HIGHCVSS 8.1/10EPSS 2.66%

Last modified

CVE-2026-48131 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. 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).. EPSS estimates a 2.66% chance of exploitation in the next 30 days.

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).

Metrics

CVSS 3.1
8.1/10

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
2.66%

84.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
checkpointQuantum 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

References

Timeline

Published
Last Modified
Status
Awaiting Analysis

Frequently Asked Questions

What is 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).
How severe is CVE-2026-48131?
CVE-2026-48131 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 2.66% probability of exploitation in the next 30 days.
How do I fix CVE-2026-48131?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST