CVE-2026-72061net: sit: require CAP_NET_ADMIN in the device netns for changelink
- 8.8HighCVSS base score
- 0.16%Exploitation in 30 daysEPSS · top 95% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By Linux
- 6 days later
· 6 days later
Published
- 2 months later
· 2 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High8.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
| NVDNVD · Received | 3.1 | High8.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.16% · top 95% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Affected products
- affected 5e6700b3bf98fe98d630bf9c939ad4c85ce95592 – < cb41b308e9d867725d965b291dd085028e36a480
- affected 5e6700b3bf98fe98d630bf9c939ad4c85ce95592 – < c5a0ae895432596b2f464172da8218e2d84e2932
- affected 5e6700b3bf98fe98d630bf9c939ad4c85ce95592 – < 7d139dec96691cde96cb40ed293e2d13d994fb4f
- affected 5e6700b3bf98fe98d630bf9c939ad4c85ce95592 – < 388ccffbd2e7e5e4271f291085a7451865705305
- affected 5e6700b3bf98fe98d630bf9c939ad4c85ce95592 – < c0ea1aedb37bb979e864ed7787975434bbd9db73
- affected 5e6700b3bf98fe98d630bf9c939ad4c85ce95592 – < 3118e97dae533fb45964b87bbed1801afcff7c65
- affected 5e6700b3bf98fe98d630bf9c939ad4c85ce95592 – < 99ae3248b33df94201915d9c32e7470cdf08cfcd
- affected 5e6700b3bf98fe98d630bf9c939ad4c85ce95592 – < 27ccb68e7cccead5d8c611665a45d23032d468b3
- affected 3.11
- unaffected < 3.11
- unaffected 5.10.261 – ≤ 5.10.*
- unaffected 5.15.212 – ≤ 5.15.*
- unaffected 6.1.178 – ≤ 6.1.*
- unaffected 6.6.145 – ≤ 6.6.*
- unaffected 6.12.97 – ≤ 6.12.*
- unaffected 6.18.40 – ≤ 6.18.*
- unaffected 7.1.5 – ≤ 7.1.*
- unaffected 7.2 – ≤ *
References
References8
- https://git.kernel.org/stable/c/cb41b308e9d867725d965b291dd085028e36a480 (opens in a new tab)
- https://git.kernel.org/stable/c/c5a0ae895432596b2f464172da8218e2d84e2932 (opens in a new tab)
- https://git.kernel.org/stable/c/7d139dec96691cde96cb40ed293e2d13d994fb4f (opens in a new tab)
- https://git.kernel.org/stable/c/388ccffbd2e7e5e4271f291085a7451865705305 (opens in a new tab)
- https://git.kernel.org/stable/c/c0ea1aedb37bb979e864ed7787975434bbd9db73 (opens in a new tab)
- https://git.kernel.org/stable/c/3118e97dae533fb45964b87bbed1801afcff7c65 (opens in a new tab)
- https://git.kernel.org/stable/c/99ae3248b33df94201915d9c32e7470cdf08cfcd (opens in a new tab)
- https://git.kernel.org/stable/c/27ccb68e7cccead5d8c611665a45d23032d468b3 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-59019 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-72061)Record last updated .