CVE-2026-72253
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:
netfilter: nf_conntrack_sip: validate skb_dst() before accessing it
tc ingress and openvswitch do not guarantee routing information to be
available. These subsystems use the conntrack helper infrastructure, and
the SIP helper relies on the skb_dst() to be present if
sip_external_media is set to 1 (which is disabled by default as a module
parameter).
This effectively disables the sip_external_media toggle for these
subsystems without resulting in a crash.
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:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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 9:16:42 AM
Action
Type
Old Value
New Value
Added
Reference
https://git.kernel.org/stable/c/0aec339694a56e263d4b22475ff7211d40900830
Added
Reference
https://git.kernel.org/stable/c/7866116a040b3a23fb094e7d8f7ea3d61b3ac70b
Added
Reference
https://git.kernel.org/stable/c/c5ef7228be04518d95591fc5369a9c554b19756d
Changed
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["net/netfilter/nf_conntrack_sip.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"cae3a2627520c3795b54533c5328b77af3405dbe","lessThan":"e64a48c50a1ff565a98c6a98d82b5b942868e76e","versionType":"git","status":"affected"},{"version":"cae3a2627520c3795b54533c5328b77af3405dbe","lessThan":"c199ed687c00841daf60e9d131976958583a8c09","versionType":"git","status":"affected"},{"version":"cae3a2627520c3795b54533c5328b77af3405dbe","lessThan":"09755dc62b026076b1d47f83489eb0547c8135e0","versionType":"git","status":"affected"},{"version":"cae3a2627520c3795b54533c5328b77af3405dbe","lessThan":"b843a96252f672332837ea2ecb7c8db0acf68e20","versionType":"git","status":"affected"},{"version":"cae3a2627520c3795b54533c5328b77af3405dbe","lessThan":"e5e24a365a5e024efef63cc49abb345fbd4852c5","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["net/netfilter/nf_conntrack_sip.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"4.3","status":"affected"},{"version":"0","lessThan":"4.3","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":"6.18.42","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 2475 characters.
View Entire Change Record [{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["net/netfilter/nf_conntrack_sip.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"cae3a2627520c3795b54533c5328b77af3405dbe","lessThan":"7866116a040b3a23fb094e7d8f7ea3d61b3ac70b","versionType":"git","status":"affected"},{"version":"cae3a2627520c3795b54533c5328b77af3405dbe","lessThan":"c5ef7228be04518d95591fc5369a9c554b19756d","versionType":"git","status":"affected"},{"version":"cae3a2627520c3795b54533c5328b77af3405dbe","lessThan":"0aec339694a56e263d4b22475ff7211d40900830","versionType":"git","status":"affected"},{"version":"cae3a2627520c3795b54533c5328b77af3405dbe","lessThan":"e64a48c50a1ff565a98c6a98d82b5b942868e76e","versionType":"git","status":"affected"},{"version":"cae3a2627520c3795b54533c5328b77af3405dbe","lessThan":"c199ed687c00841daf60e9d131976958583a8c09","versionType":"git","status":"affected"},{"version":"cae3a2627520c3795b54533c5328b77af3405dbe","lessThan":"09755dc62b026076b1d47f83489eb0547c8135e0","versionType":"git","status":"affected"},{"version":"cae3a2627520c3795b54533c5328b77af3405dbe","lessThan":"b843a96252f672332837ea2ecb7c8db0acf68e20","versionType":"git","status":"affected"},{"version":"cae3a2627520c3795b54533c5328b77af3405dbe","lessThan":"e5e24a365a5e024efef63cc49abb345fbd4852c5","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["net/netfilter/nf_conntrack_sip.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"4.3","status":"affected"},{"version":"0","lessThan":"4.3","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.*","ve
CVE Modified by kernel.org
8/17/2026 2:18:27 AM
Action
Type
Old Value
New Value
Added
CVSS V3.1
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Changed
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["net/netfilter/nf_conntrack_sip.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"cae3a2627520c3795b54533c5328b77af3405dbe","lessThan":"e64a48c50a1ff565a98c6a98d82b5b942868e76e","versionType":"git","status":"affected"},{"version":"cae3a2627520c3795b54533c5328b77af3405dbe","lessThan":"c199ed687c00841daf60e9d131976958583a8c09","versionType":"git","status":"affected"},{"version":"cae3a2627520c3795b54533c5328b77af3405dbe","lessThan":"09755dc62b026076b1d47f83489eb0547c8135e0","versionType":"git","status":"affected"},{"version":"cae3a2627520c3795b54533c5328b77af3405dbe","lessThan":"b843a96252f672332837ea2ecb7c8db0acf68e20","versionType":"git","status":"affected"},{"version":"cae3a2627520c3795b54533c5328b77af3405dbe","lessThan":"e5e24a365a5e024efef63cc49abb345fbd4852c5","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["net/netfilter/nf_conntrack_sip.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"4.3","status":"affected"},{"version":"0","lessThan":"4.3","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":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.5","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2-rc2","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["net/netfilter/nf_conntrack_sip.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"cae3a2627520c3795b54533c5328b77af3405dbe","lessThan":"e64a48c50a1ff565a98c6a98d82b5b942868e76e","versionType":"git","status":"affected"},{"version":"cae3a2627520c3795b54533c5328b77af3405dbe","lessThan":"c199ed687c00841daf60e9d131976958583a8c09","versionType":"git","status":"affected"},{"version":"cae3a2627520c3795b54533c5328b77af3405dbe","lessThan":"09755dc62b026076b1d47f83489eb0547c8135e0","versionType":"git","status":"affected"},{"version":"cae3a2627520c3795b54533c5328b77af3405dbe","lessThan":"b843a96252f672332837ea2ecb7c8db0acf68e20","versionType":"git","status":"affected"},{"version":"cae3a2627520c3795b54533c5328b77af3405dbe","lessThan":"e5e24a365a5e024efef63cc49abb345fbd4852c5","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["net/netfilter/nf_conntrack_sip.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"4.3","status":"affected"},{"version":"0","lessThan":"4.3","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":"6.18.42","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 2:21:52 AM
Action
Type
Old Value
New Value
Added
Description
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_conntrack_sip: validate skb_dst() before accessing it
tc ingress and openvswitch do not guarantee routing information to be
available. These subsystems use the conntrack helper infrastructure, and
the SIP helper relies on the skb_dst() to be present if
sip_external_media is set to 1 (which is disabled by default as a module
parameter).
This effectively disables the sip_external_media toggle for these
subsystems without resulting in a crash.
Added
Reference
https://git.kernel.org/stable/c/09755dc62b026076b1d47f83489eb0547c8135e0
Added
Reference
https://git.kernel.org/stable/c/b843a96252f672332837ea2ecb7c8db0acf68e20
Added
Reference
https://git.kernel.org/stable/c/c199ed687c00841daf60e9d131976958583a8c09
Added
Reference
https://git.kernel.org/stable/c/e5e24a365a5e024efef63cc49abb345fbd4852c5
Added
Reference
https://git.kernel.org/stable/c/e64a48c50a1ff565a98c6a98d82b5b942868e76e
Added
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["net/netfilter/nf_conntrack_sip.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"cae3a2627520c3795b54533c5328b77af3405dbe","lessThan":"e64a48c50a1ff565a98c6a98d82b5b942868e76e","versionType":"git","status":"affected"},{"version":"cae3a2627520c3795b54533c5328b77af3405dbe","lessThan":"c199ed687c00841daf60e9d131976958583a8c09","versionType":"git","status":"affected"},{"version":"cae3a2627520c3795b54533c5328b77af3405dbe","lessThan":"09755dc62b026076b1d47f83489eb0547c8135e0","versionType":"git","status":"affected"},{"version":"cae3a2627520c3795b54533c5328b77af3405dbe","lessThan":"b843a96252f672332837ea2ecb7c8db0acf68e20","versionType":"git","status":"affected"},{"version":"cae3a2627520c3795b54533c5328b77af3405dbe","lessThan":"e5e24a365a5e024efef63cc49abb345fbd4852c5","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["net/netfilter/nf_conntrack_sip.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"4.3","status":"affected"},{"version":"0","lessThan":"4.3","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":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.5","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2-rc2","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
Quick Info
CVE Dictionary Entry: CVE-2026-72253 NVD
Published Date: 08/15/2026 NVD
Last Modified: 08/23/2026
Source: kernel.org
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