What’s Vulnerable › Vulnerabilities

CVE-2026-64077: netfilter: ebtables: move to two-stage removal scheme

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-19 · updated 2026-10-30
• Weakness: CWE-362

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: ebtables: move to two-stage removal scheme Like previous patches for x_tables, follow same pattern in ebtables. We can't reuse xt helpers: ebt_table struct layout is incompatible. table->ops assignment is now done while still holding the ebt mutex to make sure we never expose partially-filled table struct.

Affected products

• Linux kernel: from 5.15 before 6.18.34; from 6.19 before 7.0.11; 7.1-rc1, 7.1-rc2, 7.1-rc3 — fixed in 6.18.34, 7.0.11
• Linux: 5.15 — fixed in 7.1

How to fix

Upgrade to a fixed version: Linux kernel 6.18.34, 7.0.11; Linux 7.1. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/6fe4c808b6cdb405ed64ea6e740d557bba3d7745
• https://git.kernel.org/stable/c/739d5dac7b2da44a756aa4d758ee3f1ccf5a27f1
• https://git.kernel.org/stable/c/b37e27f5d5cbb7723644fdf089e28a216d6093ed
• https://git.kernel.org/stable/c/b7f0544d86d439cb946515d2ef6a0a75e8626710
• https://git.kernel.org/stable/c/ef395579a7631a06d61969fc712eb80402231b89
• https://git.kernel.org/stable/c/f34e5a674afe743d1af80684d64b511f40a5c35d

Get alerted when CVE-2026-64077 or the next vulnerability affects your stack