netfilter: nft_compat: ebtables emulation must reject non-bridge targets
Summary
| CVE | CVE-2026-72416 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-08-15 06:22:15 UTC |
| Updated | 2026-08-17 06:19:08 UTC |
| 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. |
Risk And Classification
Primary CVSS: v3.1 7.3 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H
EPSS: 0.001730000 probability, percentile 0.070300000 (date 2026-08-17)
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | Secondary | 7.3 | HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H |
| 3.1 | CNA | DECLARED | 7.3 | HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H |
CVSS v3.1 Breakdown
Attack Vector
LocalAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
LowIntegrity
HighAvailability
HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected 0ca743a5599199152a31a7146b83213c786c2eb2 efc17b9240d821c424bc5191a5c6e9384a06293e git | Not specified |
| CNA | Linux | Linux | affected 0ca743a5599199152a31a7146b83213c786c2eb2 b3f7a84540a0d014ec42343ff5909657c1bd1994 git | Not specified |
| CNA | Linux | Linux | affected 0ca743a5599199152a31a7146b83213c786c2eb2 33e1875d6b5b552a2e5652b40074c604199354ee git | Not specified |
| CNA | Linux | Linux | affected 0ca743a5599199152a31a7146b83213c786c2eb2 c129b0185e707dce405968e21afccd5728b2ce63 git | Not specified |
| CNA | Linux | Linux | affected 0ca743a5599199152a31a7146b83213c786c2eb2 9dbba7e694ec045f21ede2f892fb42b81b4e1692 git | Not specified |
| CNA | Linux | Linux | affected 3.13 | Not specified |
| CNA | Linux | Linux | unaffected 3.13 semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.145 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.97 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.40 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.1.5 7.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.2 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/b3f7a84540a0d014ec42343ff5909657c1bd1994 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/c129b0185e707dce405968e21afccd5728b2ce63 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/9dbba7e694ec045f21ede2f892fb42b81b4e1692 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/efc17b9240d821c424bc5191a5c6e9384a06293e | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/33e1875d6b5b552a2e5652b40074c604199354ee | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.