CVE-2026-72053
Last modified
CVE-2026-72053 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: net: ipip: require CAP_NET_ADMIN in the device netns for changelink ipip_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 0.16% chance of exploitation in the next 30 days.
Description
In the Linux kernel, the following vulnerability has been resolved: net: ipip: require CAP_NET_ADMIN in the device netns for changelink ipip_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 ipip_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 | >= 6c742e714d8c282fd8f8b22d3e20b5141738c1ee, < a7d2642a50282322bc33f34ee7305f2b793df494; >= 6c742e714d8c282fd8f8b22d3e20b5141738c1ee, < 068ad9b85f681755f751ebab82ae98146cec163d; >= 6c742e714d8c282fd8f8b22d3e20b5141738c1ee, < 91571643e554ae89a91942380d5f5361fb7060a2; >= 6c742e714d8c282fd8f8b22d3e20b5141738c1ee, < 983cc4aa7e6f633b34c3ee743771252d7afa9a90; >= 6c742e714d8c282fd8f8b22d3e20b5141738c1ee, < 26544021d5c49cc6ae8a968ccb5033e6363854a4; >= 6c742e714d8c282fd8f8b22d3e20b5141738c1ee, < 68cadc3698c7de88966d306d12ec9c6217da228a; >= 6c742e714d8c282fd8f8b22d3e20b5141738c1ee, < d49edcc65e0a37cc9b386a94415c5d6670ca8b71; >= 6c742e714d8c282fd8f8b22d3e20b5141738c1ee, < 8211a26324667980a463c069469a818e71207e02 |
| Linux | Linux | 3.12 |
References
Timeline
- Published
- Last Modified
- Status
- Received
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