CVE-2026-72055net: ip6_vti: require CAP_NET_ADMIN in the device netns for changelink
- 8.8HighCVSS base score
- 0.15%Exploitation in 30 daysEPSS · top 96% 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: 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.
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)
- 0.15% · top 96% of all CVEs (12 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 61220ab349485d911083d0b7990ccd3db6c63297 – < f5254e7766b4ac02b66b2ccef896cd278503cb11
- affected 61220ab349485d911083d0b7990ccd3db6c63297 – < ef897249dc957089e6f7f11ceea699e093ad51bd
- affected 61220ab349485d911083d0b7990ccd3db6c63297 – < f6e8b52a2cb3bbd72ddc2d44e474b907b9dcf5ba
- affected 61220ab349485d911083d0b7990ccd3db6c63297 – < c64b9ae7eb97e81d54b792910a3aeafd92566c79
- affected 61220ab349485d911083d0b7990ccd3db6c63297 – < b2b61c540571b3cc2f461e2a579ba2cc8c2a52cf
- affected 61220ab349485d911083d0b7990ccd3db6c63297 – < 0b2f9c908f930ec4be17d389723f9a202d6a883c
- affected 61220ab349485d911083d0b7990ccd3db6c63297 – < f97e93ebf2f9b8ef3b87f7a9371255e84d151587
- affected 61220ab349485d911083d0b7990ccd3db6c63297 – < e2ac3b242c37dff323a964962e43854f4b1a2b79
- affected 3.15
- unaffected < 3.15
- 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/f5254e7766b4ac02b66b2ccef896cd278503cb11 (opens in a new tab)
- https://git.kernel.org/stable/c/ef897249dc957089e6f7f11ceea699e093ad51bd (opens in a new tab)
- https://git.kernel.org/stable/c/f6e8b52a2cb3bbd72ddc2d44e474b907b9dcf5ba (opens in a new tab)
- https://git.kernel.org/stable/c/c64b9ae7eb97e81d54b792910a3aeafd92566c79 (opens in a new tab)
- https://git.kernel.org/stable/c/b2b61c540571b3cc2f461e2a579ba2cc8c2a52cf (opens in a new tab)
- https://git.kernel.org/stable/c/0b2f9c908f930ec4be17d389723f9a202d6a883c (opens in a new tab)
- https://git.kernel.org/stable/c/f97e93ebf2f9b8ef3b87f7a9371255e84d151587 (opens in a new tab)
- https://git.kernel.org/stable/c/e2ac3b242c37dff323a964962e43854f4b1a2b79 (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-2026-59013 (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-2026-72055)Record last updated .