CVE-2026-72416

netfilter: nft_compat: ebtables emulation must reject non-bridge targets

HIGH
7.3
CVSS Score
Published: August 15, 2026 at 05:56 AM UTC
Updated: October 30, 2026 at 01:19 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.3
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_compat: ebtables emulation must reject non-bridge targets xtables targets return netfilter verdicts: NF_ACCEPT, NF_DROP, and so on. ebtables targets return incompatible verdicts: EBT_ACCEPT, EBT_DROP, ... We cannot allow fallback to NFPROTO_UNSPEC. ebtables doesn't permit this since 11ff7288beb2 ("netfilter: ebtables: reject non-bridge targets") but that commit missed the nft_compat layer.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

0ca743a5599199152a31a7146b83213c786c2eb23.13
Vendor states this is fixed in 33e1875d6b5b552a2e5652b40074c604199354ee (fixed)
Vendor states this is fixed in 9dbba7e694ec045f21ede2f892fb42b81b4e1692 (fixed)
Vendor states this is fixed in b3f7a84540a0d014ec42343ff5909657c1bd1994 (fixed)
Vendor states this is fixed in c129b0185e707dce405968e21afccd5728b2ce63 (fixed)
Vendor states this is fixed in efc17b9240d821c424bc5191a5c6e9384a06293e (fixed)
Vendor states this is fixed in 3.13 (unaffected)
Vendor states this is fixed in 6.12.97 (unaffected)
Vendor states this is fixed in 6.18.40 (unaffected)
Vendor states this is fixed in 6.6.145 (unaffected)
Vendor states this is fixed in 7.1.5 (unaffected)
Vendor states this is fixed in 7.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.3HIGHLinux
Vector?

Quick Info

StatusRECEIVED

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