CVE-2026-72253

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Source
https://cve.org/CVERecord?id=CVE-2026-72253
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72253.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-72253
Downstream
Published
2026-08-15T05:54:41Z
Modified
2026-08-25T03:51:46Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
netfilter: nf_conntrack_sip: validate skb_dst() before accessing it
Details

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.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72253.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
cae3a2627520c3795b54533c5328b77af3405dbe
Fixed
7866116a040b3a23fb094e7d8f7ea3d61b3ac70b
Fixed
c5ef7228be04518d95591fc5369a9c554b19756d
Fixed
0aec339694a56e263d4b22475ff7211d40900830
Fixed
e64a48c50a1ff565a98c6a98d82b5b942868e76e
Fixed
c199ed687c00841daf60e9d131976958583a8c09
Fixed
09755dc62b026076b1d47f83489eb0547c8135e0
Fixed
b843a96252f672332837ea2ecb7c8db0acf68e20
Fixed
e5e24a365a5e024efef63cc49abb345fbd4852c5

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72253.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
4.3.0
Fixed
5.10.266
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.217
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.184
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.148
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.101
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.42
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.1.5

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72253.json"