CVE-2026-72054
Last modified
CVE-2026-72054 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: net: ip_vti: require CAP_NET_ADMIN in the device netns for changelink vti_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. EPSS estimates a 0.21% chance of exploitation in the next 30 days.
Description
In the Linux kernel, the following vulnerability has been resolved: net: ip_vti: require CAP_NET_ADMIN in the device netns for changelink vti_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 vti_changelink() on rtnl_dev_link_net_capable() at its top, before any attribute is parsed.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 895de9a3488abcdd186680f0af3cce7f2d4d4a6e, < 1caf737e625143c6f23c32d2b747b1a3e42e5699; >= 895de9a3488abcdd186680f0af3cce7f2d4d4a6e, < 32edf8aa297745226854eda2d96c0fac66c1bb15; >= 895de9a3488abcdd186680f0af3cce7f2d4d4a6e, < 973ead9e565423642e4533e1547b5d2c0476fb03; >= 895de9a3488abcdd186680f0af3cce7f2d4d4a6e, < 33fd93961557ec8e3e9958995b28684c5f949394; >= 895de9a3488abcdd186680f0af3cce7f2d4d4a6e, < 6d8bc0dc99472d62c57c2a3d436e6ab408592bda; >= 895de9a3488abcdd186680f0af3cce7f2d4d4a6e, < 9571af2eec8023af9a1671b7f2cd4ab400011724; >= 895de9a3488abcdd186680f0af3cce7f2d4d4a6e, < 88b33ee458a6ca5fbef6c53b9dba772da69dab68; >= 895de9a3488abcdd186680f0af3cce7f2d4d4a6e, < 95cceadbfd52d7239bd730afdda0655287d77425 |
| Linux | Linux | 3.15 |
References
Timeline
- Published
- Last Modified
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- Received
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