netfilter: ebtables: move to two-stage removal scheme
CVE-2026-64077 · published 19 Jul 2026
How serious is it
- Severity: high, CVSS score 7.8 out of 10.
- No exploit prediction (EPSS) score yet.
- Not on the CISA list of exploited vulnerabilities.
- No public exploit in Exploit-DB.
Is your app affected by CVE-2026-64077?
Paste this prompt into Claude Code, Cursor or any AI coding tool: it runs a free Shippable scan of your project and fixes what it finds. Built with Lovable, Bolt or v0? Scan your live app. Or upload your package file.
Who is affected
- Linux Linux: 87663c39f898b18905499126548da61450628682 to < 6fe4c808b6cdb405ed64ea6e740d557bba3d7745, 87663c39f898b18905499126548da61450628682 to < f34e5a674afe743d1af80684d64b511f40a5c35d, 87663c39f898b18905499126548da61450628682 to < 739d5dac7b2da44a756aa4d758ee3f1ccf5a27f1, 87663c39f898b18905499126548da61450628682 to < ef395579a7631a06d61969fc712eb80402231b89
- Linux Linux: 5.15
How to check
- Find out whether you run the affected product and which version, then compare it with the versions above.
How to fix
Copies a prompt for Claude Code, Cursor or Codex that asks it to check whether you run this product.
- Apply the vendor's update or mitigation from the references below. If there is none yet, limit exposure of the affected service until there is.
- If a vulnerable version was live, check your logs and rotate the secrets that server could read.
The advisory
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.
Check your whole app
Dependencies are only half of it. Free and read-only: before you push, run npx shippable-dev scan localhost:3000 in your project folder, no account needed. For your live app, you prove it's yours with a one-line tag first.
References
- git.kernel.org/stable/c/6fe4c808b6cdb405ed64ea6e740d557bba3d7745
- git.kernel.org/stable/c/f34e5a674afe743d1af80684d64b511f40a5c35d
- git.kernel.org/stable/c/739d5dac7b2da44a756aa4d758ee3f1ccf5a27f1
- git.kernel.org/stable/c/ef395579a7631a06d61969fc712eb80402231b89
- git.kernel.org/stable/c/b7f0544d86d439cb946515d2ef6a0a75e8626710
Merged from CVE List. Last updated 25 Oct 2026. All vulnerabilities · RSS · JSON