What is CVE-2026-45859?

CVE-2026-45859 is a high-severity vulnerability in Linux. CVSS score: 7.5/10. Published 2026-05-27.

How severe is CVE-2026-45859?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Linux

CVE-2026-45859

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlink_queue: do shared-unconfirmed check before segmentation Ulrich reports a regression with nfqueue: If an application did not set the 'F_GSO' capabili…

EPSS: 0.001 (17.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Linux — versions 7d8dc1c7be8d3509e8f5164dd5df64c8e34d7eeb, 6c4a0ba674f410ab99a30a16f32dac0ebfed5cd3, 6dcc8ba8a6074bb79040f502dc66ad23a58a1c86

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67
416baaa9-dc9f-4396-8d5f-8c081fb06d67
416baaa9-dc9f-4396-8d5f-8c081fb06d67
416baaa9-dc9f-4396-8d5f-8c081fb06d67

Frequently asked questions

What is CVE-2026-45859?: CVE-2026-45859 is a high-severity vulnerability in Linux. CVSS score: 7.5/10. Published 2026-05-27.
How severe is CVE-2026-45859?: High severity. CVSS v3 base score is 7.5 out of 10.