What is CVE-2026-53131?

CVE-2026-53131 is a critical-severity vulnerability in Linux. CVSS score: 9.4/10. Published 2026-06-25.

How severe is CVE-2026-53131?

Critical severity. CVSS v3 base score is 9.4 out of 10.

Vulnerability in Linux

CVE-2026-53131

In the Linux kernel, the following vulnerability has been resolved: netfilter: require Ethernet MAC header before using eth_hdr() `ip6t_eui64`, `xt_mac`, the `bitmap:ip,mac`, `hash:ip,mac`, and `hash:mac` ipset types, and `nf_log_syslog`…

EPSS: 0.004 (34.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.4 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H.

Affected products

Linux — versions 0, 6.12.94, 6.6.143
Linux Linux_kernel — versions 2.6.12

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)

Frequently asked questions

What is CVE-2026-53131?: CVE-2026-53131 is a critical-severity vulnerability in Linux. CVSS score: 9.4/10. Published 2026-06-25.
How severe is CVE-2026-53131?: Critical severity. CVSS v3 base score is 9.4 out of 10.