CVE-2026-72051

Last refreshed2026-10-17

Status: UPDATED | Advisory ID: CVE-2026-72051

Key Details

CVE	CVE-2026-72051
CVSS Score / Version	8.8 (High) / CVSS v3.1
Updated	2026-10-16
CVSS Vector	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`
CVSS Prose	attack vector is local; attack complexity is low; privileges required is low; user interaction is none; scope is changed; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected products	Linux Kernel

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

In the Linux kernel, the following vulnerability has been resolved:

net: ip6_tunnel: require CAP_NET_ADMIN in the device netns for changelink

ip6_tnl_changelink() operates on at most two netns, dev_net(dev) and the

tunnel link netns t->net. They differ once the device is created in or

moved to a netns other than the one the request runs in. The rtnl

changelink path checks CAP_NET_ADMIN only against dev_net(dev), so a

caller privileged there but not in t->net can rewrite a tunnel that

lives in t->net.

Gate ip6_tnl_changelink() on rtnl_dev_link_net_capable() at its top,

before any attribute is parsed. (NVD)

Monitor Linux's web page for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-72051
CVE	https://www.cve.org/CVERecord?id=CVE-2026-72051

Source

Reference

NVD

CVE