In the Linux kernel, the following vulnerability has been resolved: netfilter: require Ethernet MAC header before using eth_hdr() `ip6t_eui64`, `xt_mac`, the `bitmap:ip,mac`, `hash:ip,mac`, and `hash:mac` ipset types, and `nf_log_syslog` access `eth_hdr(skb)` after either assuming that the skb is associated with an Ethernet device or checking only that the `ETH_HLEN` bytes at `skb_mac_header(skb)` lie between `skb->head` and `skb->data`. Make these paths first verify that the skb is associated with an Ethernet device, that the MAC header was set, and that it spans at least a full Ethernet header before accessing `eth_hdr(skb)`.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact Low

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

No data.

No data.

References
Link Providers
https://git.kernel.org/stable/c/063f43361e884acd7300790e90194430275d0d0c cve-icon
https://git.kernel.org/stable/c/367abcacc13a8e2e7624408b7f593bd1e60e49d9 cve-icon
https://git.kernel.org/stable/c/4435888e1bf139d2bfe5911643d4217382136743 cve-icon
https://git.kernel.org/stable/c/5d634afb8b83b49de562792fd0d047416a43bd4d cve-icon
https://git.kernel.org/stable/c/62443dc21114c0bbc476fa62973db89743f2f137 cve-icon
https://git.kernel.org/stable/c/726abf97566867f808fec9d8a408eb9698bd570a cve-icon
https://git.kernel.org/stable/c/cea435ea7e868ea6fdf039bc4f2090c1d829b556 cve-icon
https://lore.kernel.org/linux-cve-announce/2026062539-CVE-2026-53131-0b14@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-53131 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-53131 cve-icon
History

Sun, 28 Jun 2026 08:00:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

 cvssV3_1

{'score': 9.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H'}

Fri, 26 Jun 2026 03:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-20

Fri, 26 Jun 2026 00:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-125
References
Metrics threat_severity

None

 cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

threat_severity

Moderate

Thu, 25 Jun 2026 10:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-20

Thu, 25 Jun 2026 09:15:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: netfilter: require Ethernet MAC header before using eth_hdr() `ip6t_eui64`, `xt_mac`, the `bitmap:ip,mac`, `hash:ip,mac`, and `hash:mac` ipset types, and `nf_log_syslog` access `eth_hdr(skb)` after either assuming that the skb is associated with an Ethernet device or checking only that the `ETH_HLEN` bytes at `skb_mac_header(skb)` lie between `skb->head` and `skb->data`. Make these paths first verify that the skb is associated with an Ethernet device, that the MAC header was set, and that it spans at least a full Ethernet header before accessing `eth_hdr(skb)`.
Title netfilter: require Ethernet MAC header before using eth_hdr()
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2026-06-25T08:38:20.489Z

Updated: 2026-06-29T04:18:50.562Z

Reserved: 2026-06-09T07:44:35.386Z

Link: CVE-2026-53131

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-06-25T00:00:00Z

Links: CVE-2026-53131 - Bugzilla