CVE-2026-72051net: ip6_tunnel: 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_tunnel: require CAP_NET_ADMIN in the device netns for changelink ip6_tnl_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 ip6_tnl_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 (13 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 0bd8762824e73a3cce7b7560a97463301764b616 – < 2d53ee7daabe733deb81f51d2cc90188f8ad59a1
- affected 0bd8762824e73a3cce7b7560a97463301764b616 – < 82e53e7281c71e174f9f5877c566a623c637b406
- affected 0bd8762824e73a3cce7b7560a97463301764b616 – < 5252db8fb604321133138c7069d6fc3fcd89cdee
- affected 0bd8762824e73a3cce7b7560a97463301764b616 – < 2636d061bc237a2446a146e42dcc6563acfa7432
- affected 0bd8762824e73a3cce7b7560a97463301764b616 – < 7f68f7928484f463a5bc0d50e6fdd8d16f55a5aa
- affected 0bd8762824e73a3cce7b7560a97463301764b616 – < 234cd54fc500f69db43e37de38603da617fbbeea
- affected 0bd8762824e73a3cce7b7560a97463301764b616 – < d4bcc202a3530c856e1cb183384bc9cc8fddab22
- affected 0bd8762824e73a3cce7b7560a97463301764b616 – < 2496fa0b7d180b3ad356b514e7ff93bb14e6140a
- affected 3.12
- unaffected < 3.12
- unaffected 5.10.266 – ≤ 5.10.*
- unaffected 5.15.217 – ≤ 5.15.*
- unaffected 6.1.184 – ≤ 6.1.*
- unaffected 6.6.148 – ≤ 6.6.*
- unaffected 6.12.101 – ≤ 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/2d53ee7daabe733deb81f51d2cc90188f8ad59a1 (opens in a new tab)
- https://git.kernel.org/stable/c/82e53e7281c71e174f9f5877c566a623c637b406 (opens in a new tab)
- https://git.kernel.org/stable/c/5252db8fb604321133138c7069d6fc3fcd89cdee (opens in a new tab)
- https://git.kernel.org/stable/c/2636d061bc237a2446a146e42dcc6563acfa7432 (opens in a new tab)
- https://git.kernel.org/stable/c/7f68f7928484f463a5bc0d50e6fdd8d16f55a5aa (opens in a new tab)
- https://git.kernel.org/stable/c/234cd54fc500f69db43e37de38603da617fbbeea (opens in a new tab)
- https://git.kernel.org/stable/c/d4bcc202a3530c856e1cb183384bc9cc8fddab22 (opens in a new tab)
- https://git.kernel.org/stable/c/2496fa0b7d180b3ad356b514e7ff93bb14e6140a (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-2026-59009 (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-2026-72051)Record last updated .