CVE-2026-72061High· 8.8▾ TwilightIn the Linux kernel, the following vulnerability has been resolved: net: sit: require CAP_NET_ADMIN in the device netns for changelink ipip6_changelink() operates on at most two netns, dev_net(dev) and the tunnel link netns t->net. The…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 48.4 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Oct 16.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.2%
Last analysed / modified upstream
In the Linux kernel, the following vulnerability has been resolved:
net: sit: require CAP_NET_ADMIN in the device netns for changelink
ipip6_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 ipip6_changelink() on rtnl_dev_link_net_capable() at its top, before any attribute is parsed. sit was the one tunnel type not covered by the recent series that added this check to the other changelink() handlers.
Linux >= 5e6700b3bf98fe98d630bf9c939ad4c85ce95592 < cb41b308e9d867725d965b291dd085028e36a480Linux >= 5e6700b3bf98fe98d630bf9c939ad4c85ce95592 < c5a0ae895432596b2f464172da8218e2d84e2932Linux >= 5e6700b3bf98fe98d630bf9c939ad4c85ce95592 < 7d139dec96691cde96cb40ed293e2d13d994fb4fLinux >= 5e6700b3bf98fe98d630bf9c939ad4c85ce95592 < 388ccffbd2e7e5e4271f291085a7451865705305Linux >= 5e6700b3bf98fe98d630bf9c939ad4c85ce95592 < c0ea1aedb37bb979e864ed7787975434bbd9db73Linux >= 5e6700b3bf98fe98d630bf9c939ad4c85ce95592 < 3118e97dae533fb45964b87bbed1801afcff7c65Linux >= 5e6700b3bf98fe98d630bf9c939ad4c85ce95592 < 99ae3248b33df94201915d9c32e7470cdf08cfcdLinux >= 5e6700b3bf98fe98d630bf9c939ad4c85ce95592 < 27ccb68e7cccead5d8c611665a45d23032d468b3Linux 3.11Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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