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

net: ip6_vti: require CAP_NET_ADMIN in the device netns for changelink

vti6_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 vti6_changelink() on rtnl_dev_link_net_capable() at its top,
before any attribute is parsed.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
61220ab349485d911083d0b7990ccd3db6c63297 affected < f5254e7766b4ac02b66b2ccef896cd278503cb11
61220ab349485d911083d0b7990ccd3db6c63297 affected < ef897249dc957089e6f7f11ceea699e093ad51bd
61220ab349485d911083d0b7990ccd3db6c63297 affected < f6e8b52a2cb3bbd72ddc2d44e474b907b9dcf5ba
61220ab349485d911083d0b7990ccd3db6c63297 affected < c64b9ae7eb97e81d54b792910a3aeafd92566c79
61220ab349485d911083d0b7990ccd3db6c63297 affected < b2b61c540571b3cc2f461e2a579ba2cc8c2a52cf
61220ab349485d911083d0b7990ccd3db6c63297 affected < 0b2f9c908f930ec4be17d389723f9a202d6a883c
61220ab349485d911083d0b7990ccd3db6c63297 affected < f97e93ebf2f9b8ef3b87f7a9371255e84d151587
61220ab349485d911083d0b7990ccd3db6c63297 affected < e2ac3b242c37dff323a964962e43854f4b1a2b79
Linux Linux affected
Version Status Constraints
3.15 affected —
0 unaffected < 3.15
5.10.261 unaffected ≤ 5.10.*
5.15.212 unaffected ≤ 5.15.*
6.1.178 unaffected ≤ 6.1.*
6.6.145 unaffected ≤ 6.6.*
6.12.97 unaffected ≤ 6.12.*
6.18.40 unaffected ≤ 6.18.*
7.1.5 unaffected ≤ 7.1.*
7.2-rc1 unaffected ≤ *

No data.

No data.

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/0b2f9c908f930ec4be17d389723f9a202d6a883c cve-icon cve-icon
https://git.kernel.org/stable/c/b2b61c540571b3cc2f461e2a579ba2cc8c2a52cf cve-icon cve-icon
https://git.kernel.org/stable/c/c64b9ae7eb97e81d54b792910a3aeafd92566c79 cve-icon cve-icon
https://git.kernel.org/stable/c/e2ac3b242c37dff323a964962e43854f4b1a2b79 cve-icon cve-icon
https://git.kernel.org/stable/c/ef897249dc957089e6f7f11ceea699e093ad51bd cve-icon cve-icon
https://git.kernel.org/stable/c/f5254e7766b4ac02b66b2ccef896cd278503cb11 cve-icon cve-icon
https://git.kernel.org/stable/c/f6e8b52a2cb3bbd72ddc2d44e474b907b9dcf5ba cve-icon cve-icon
https://git.kernel.org/stable/c/f97e93ebf2f9b8ef3b87f7a9371255e84d151587 cve-icon cve-icon
History

Sat, 15 Aug 2026 09:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-269
CWE-284

Sat, 15 Aug 2026 06:00:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: net: ip6_vti: require CAP_NET_ADMIN in the device netns for changelink vti6_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 vti6_changelink() on rtnl_dev_link_net_capable() at its top, before any attribute is parsed.
Title net: ip6_vti: require CAP_NET_ADMIN in the device netns for changelink
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-08-15T05:52:11.413Z

Reserved: 2026-08-09T03:40:39.903Z

Link: CVE-2026-72055

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-15T06:21:14.890

Modified: 2026-08-15T06:21:14.890

Link: CVE-2026-72055

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-15T08:45:05Z

Weaknesses