How severe is CVE-2026-48132?

CVE-2026-48132 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-48132 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-48132?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-48132 have an EU (EUVD) identifier?

Yes. CVE-2026-48132 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-31819.

When was CVE-2026-48132 published?

CVE-2026-48132 was published on 2026-05-26 and last updated on 2026-06-17.

CVE-2026-48132

CVE-2026-48132 is a high-severity vulnerability with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-125.

Key facts

Severity: High (CVSS 3.x base score 8.1)
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-31819
Weakness: CWE-125
Published: 2026-05-26
Last modified: 2026-06-17

Description

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).

Frequently asked questions

What is CVE-2026-48132?: 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).
How severe is CVE-2026-48132?: CVE-2026-48132 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-48132 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-48132?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-48132 have an EU (EUVD) identifier?: Yes. CVE-2026-48132 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-31819.
When was CVE-2026-48132 published?: CVE-2026-48132 was published on 2026-05-26 and last updated on 2026-06-17.

References

https://support.checkpoint.com/results/sk/sk184982

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