CVE-2026-72051
Detail
Received This CVE record has recently been published to the CVE List and has been included within the NVD dataset.
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.
Metrics
CVSS Version 4.0
CVSS Version 3.x
CVSS Version 2.0
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
displayed.
CVSS 4.0 Severity and Vector Strings:
NVD assessment
not yet provided.
CVSS 3.x Severity and Vector Strings:
NVD assessment
not yet provided.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS 2.0 Severity and Vector Strings:
NVD assessment
not yet provided.
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Change History
3 change records found show changes
CVE Modified by kernel.org
8/23/2026 9:16:38 AM
Action
Type
Old Value
New Value
Added
Reference
https://git.kernel.org/stable/c/2d53ee7daabe733deb81f51d2cc90188f8ad59a1
Added
Reference
https://git.kernel.org/stable/c/5252db8fb604321133138c7069d6fc3fcd89cdee
Added
Reference
https://git.kernel.org/stable/c/82e53e7281c71e174f9f5877c566a623c637b406
Changed
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["net/ipv6/ip6_tunnel.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"0bd8762824e73a3cce7b7560a97463301764b616","lessThan":"2636d061bc237a2446a146e42dcc6563acfa7432","versionType":"git","status":"affected"},{"version":"0bd8762824e73a3cce7b7560a97463301764b616","lessThan":"7f68f7928484f463a5bc0d50e6fdd8d16f55a5aa","versionType":"git","status":"affected"},{"version":"0bd8762824e73a3cce7b7560a97463301764b616","lessThan":"234cd54fc500f69db43e37de38603da617fbbeea","versionType":"git","status":"affected"},{"version":"0bd8762824e73a3cce7b7560a97463301764b616","lessThan":"d4bcc202a3530c856e1cb183384bc9cc8fddab22","versionType":"git","status":"affected"},{"version":"0bd8762824e73a3cce7b7560a97463301764b616","lessThan":"2496fa0b7d180b3ad356b514e7ff93bb14e6140a","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["net/ipv6/ip6_tunnel.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"3.12","status":"affected"},{"version":"0","lessThan":"3.12","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.40","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.5","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
Record truncated, showing 2048 of 2455 characters.
View Entire Change Record [{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["net/ipv6/ip6_tunnel.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"0bd8762824e73a3cce7b7560a97463301764b616","lessThan":"2d53ee7daabe733deb81f51d2cc90188f8ad59a1","versionType":"git","status":"affected"},{"version":"0bd8762824e73a3cce7b7560a97463301764b616","lessThan":"82e53e7281c71e174f9f5877c566a623c637b406","versionType":"git","status":"affected"},{"version":"0bd8762824e73a3cce7b7560a97463301764b616","lessThan":"5252db8fb604321133138c7069d6fc3fcd89cdee","versionType":"git","status":"affected"},{"version":"0bd8762824e73a3cce7b7560a97463301764b616","lessThan":"2636d061bc237a2446a146e42dcc6563acfa7432","versionType":"git","status":"affected"},{"version":"0bd8762824e73a3cce7b7560a97463301764b616","lessThan":"7f68f7928484f463a5bc0d50e6fdd8d16f55a5aa","versionType":"git","status":"affected"},{"version":"0bd8762824e73a3cce7b7560a97463301764b616","lessThan":"234cd54fc500f69db43e37de38603da617fbbeea","versionType":"git","status":"affected"},{"version":"0bd8762824e73a3cce7b7560a97463301764b616","lessThan":"d4bcc202a3530c856e1cb183384bc9cc8fddab22","versionType":"git","status":"affected"},{"version":"0bd8762824e73a3cce7b7560a97463301764b616","lessThan":"2496fa0b7d180b3ad356b514e7ff93bb14e6140a","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["net/ipv6/ip6_tunnel.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"3.12","status":"affected"},{"version":"0","lessThan":"3.12","versionType":"semver","status":"unaffected"},{"version":"5.10.266","lessThanOrEqual":"5.10.*","versionType":"semver","status":"unaffected"},{"version":"5.15.217","lessThanOrEqual":"5.15.*","versionType":"semver","status":"unaffected"},{"version":"6.1.184","lessThanOrEqual":"6.1.*","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver",
CVE Modified by kernel.org
8/17/2026 2:18:03 AM
Action
Type
Old Value
New Value
Added
CVSS V3.1
AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Changed
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["net/ipv6/ip6_tunnel.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"0bd8762824e73a3cce7b7560a97463301764b616","lessThan":"2636d061bc237a2446a146e42dcc6563acfa7432","versionType":"git","status":"affected"},{"version":"0bd8762824e73a3cce7b7560a97463301764b616","lessThan":"7f68f7928484f463a5bc0d50e6fdd8d16f55a5aa","versionType":"git","status":"affected"},{"version":"0bd8762824e73a3cce7b7560a97463301764b616","lessThan":"234cd54fc500f69db43e37de38603da617fbbeea","versionType":"git","status":"affected"},{"version":"0bd8762824e73a3cce7b7560a97463301764b616","lessThan":"d4bcc202a3530c856e1cb183384bc9cc8fddab22","versionType":"git","status":"affected"},{"version":"0bd8762824e73a3cce7b7560a97463301764b616","lessThan":"2496fa0b7d180b3ad356b514e7ff93bb14e6140a","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["net/ipv6/ip6_tunnel.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"3.12","status":"affected"},{"version":"0","lessThan":"3.12","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.40","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.5","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2-rc1","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["net/ipv6/ip6_tunnel.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"0bd8762824e73a3cce7b7560a97463301764b616","lessThan":"2636d061bc237a2446a146e42dcc6563acfa7432","versionType":"git","status":"affected"},{"version":"0bd8762824e73a3cce7b7560a97463301764b616","lessThan":"7f68f7928484f463a5bc0d50e6fdd8d16f55a5aa","versionType":"git","status":"affected"},{"version":"0bd8762824e73a3cce7b7560a97463301764b616","lessThan":"234cd54fc500f69db43e37de38603da617fbbeea","versionType":"git","status":"affected"},{"version":"0bd8762824e73a3cce7b7560a97463301764b616","lessThan":"d4bcc202a3530c856e1cb183384bc9cc8fddab22","versionType":"git","status":"affected"},{"version":"0bd8762824e73a3cce7b7560a97463301764b616","lessThan":"2496fa0b7d180b3ad356b514e7ff93bb14e6140a","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["net/ipv6/ip6_tunnel.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"3.12","status":"affected"},{"version":"0","lessThan":"3.12","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.40","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.5","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
New CVE Received from kernel.org
8/15/2026 2:21:14 AM
Action
Type
Old Value
New Value
Added
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.
Added
Reference
https://git.kernel.org/stable/c/234cd54fc500f69db43e37de38603da617fbbeea
Added
Reference
https://git.kernel.org/stable/c/2496fa0b7d180b3ad356b514e7ff93bb14e6140a
Added
Reference
https://git.kernel.org/stable/c/2636d061bc237a2446a146e42dcc6563acfa7432
Added
Reference
https://git.kernel.org/stable/c/7f68f7928484f463a5bc0d50e6fdd8d16f55a5aa
Added
Reference
https://git.kernel.org/stable/c/d4bcc202a3530c856e1cb183384bc9cc8fddab22
Added
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["net/ipv6/ip6_tunnel.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"0bd8762824e73a3cce7b7560a97463301764b616","lessThan":"2636d061bc237a2446a146e42dcc6563acfa7432","versionType":"git","status":"affected"},{"version":"0bd8762824e73a3cce7b7560a97463301764b616","lessThan":"7f68f7928484f463a5bc0d50e6fdd8d16f55a5aa","versionType":"git","status":"affected"},{"version":"0bd8762824e73a3cce7b7560a97463301764b616","lessThan":"234cd54fc500f69db43e37de38603da617fbbeea","versionType":"git","status":"affected"},{"version":"0bd8762824e73a3cce7b7560a97463301764b616","lessThan":"d4bcc202a3530c856e1cb183384bc9cc8fddab22","versionType":"git","status":"affected"},{"version":"0bd8762824e73a3cce7b7560a97463301764b616","lessThan":"2496fa0b7d180b3ad356b514e7ff93bb14e6140a","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["net/ipv6/ip6_tunnel.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"3.12","status":"affected"},{"version":"0","lessThan":"3.12","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.40","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.5","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2-rc1","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
Quick Info
CVE Dictionary Entry: CVE-2026-72051 NVD
Published Date: 08/15/2026 NVD
Last Modified: 08/23/2026
Source: kernel.org
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