CVE-2026-64077 netfilter: ebtables: move to two-stage removal scheme
A race condition in Linux kernel ebtables removal allows attackers to exploit partially-filled table structures, potentially leading to code execution or privilege escalation.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-64077?
CVE-2026-64077 is a high-severity vulnerability in Linux kernel, published on 19 Jul 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-362
Which versions are affected by CVE-2026-64077?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-64077?
Apply the vendor's patch.
Is CVE-2026-64077 being exploited?
There is no known exploitation of CVE-2026-64077 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-92769, BELL-CVE-2026-64077, DEBIAN-CVE-2026-64077, GHSA-2pwc-rv94-9pp5, ROOT-OS-DEBIAN-12-CVE-2026-64077, ROOT-OS-DEBIAN-13-CVE-2026-64077 and 2 more.