CVE-2026-53131

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)`.

CVSS v3 9.4 CRITICAL

9.4^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/063f43361e884acd7300790e90194430275d0d0c	Patch
https://git.kernel.org/stable/c/367abcacc13a8e2e7624408b7f593bd1e60e49d9	Patch
https://git.kernel.org/stable/c/4435888e1bf139d2bfe5911643d4217382136743	Patch
https://git.kernel.org/stable/c/5d634afb8b83b49de562792fd0d047416a43bd4d	Patch
https://git.kernel.org/stable/c/62443dc21114c0bbc476fa62973db89743f2f137	Patch
https://git.kernel.org/stable/c/726abf97566867f808fec9d8a408eb9698bd570a	Patch
https://git.kernel.org/stable/c/cea435ea7e868ea6fdf039bc4f2090c1d829b556	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:2.6.12:-::::::
	cpe:2.3:o:linux:linux_kernel:2.6.12:rc2::::::
	cpe:2.3:o:linux:linux_kernel:2.6.12:rc3::::::
	cpe:2.3:o:linux:linux_kernel:2.6.12:rc4::::::
	cpe:2.3:o:linux:linux_kernel:2.6.12:rc5::::::

History

No history.

Information

Published : 2026-06-25 09:16

Updated : 2026-07-06 15:24

NVD link : CVE-2026-53131

Mitre link : CVE-2026-53131

CVE.ORG link : CVE-2026-53131

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

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`xt_mac`, the `bitmap:ip,mac`, `hash:ip,mac`, and\n`hash:mac` ipset types, and `nf_log_syslog` access `eth_hdr(skb)`\nafter either assuming that the skb is associated with an Ethernet\ndevice or checking only that the `ETH_HLEN` bytes at\n`skb_mac_header(skb)` lie between `skb->head` and `skb->data`.\n\nMake these paths first verify that the skb is associated with an\nEthernet device, that the MAC header was set, and that it spans at\nleast a full Ethernet header before accessing `eth_hdr(skb)`."}], "lastModified": "2026-07-06T15:24:25.940", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9C9C01DE-8B58-4685-BE17-27C5DE19C71B", "versionEndExcluding": "5.15.210", "versionStartIncluding": "2.6.12.1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C4446623-5F2B-4DD8-8666-9FAAC285A757", "versionEndExcluding": "6.1.176", 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