8.8
HIGH
CVSS 3.1
CVE-2026-72054
net: ip_vti: require CAP_NET_ADMIN in the device netns for changelink
Overview
Description
In the Linux kernel, the following vulnerability has been resolved: net: ip_vti: require CAP_NET_ADMIN in the device netns for changelink vti_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 vti_changelink() on rtnl_dev_link_net_capable() at its top, before any attribute is parsed.
Details
INFO
Published Date :
Aug. 15, 2026, 6:21 a.m.
Last Modified :
Aug. 17, 2026, 6:18 a.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework
for assessing the severity of vulnerabilities in software and systems.
We collect and displays CVSS scores from various sources for each CVE.
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
Solution
Gate vti_changelink() on rtnl_dev_link_net_capable() to enforce privilege checks.
- Apply the kernel patch for net: ip_vti authorization.
- Ensure CAP_NET_ADMIN is checked in the correct network namespace.
- Review access controls for network device operations.
References
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-72054.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-72054 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-72054
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-72054 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-72054 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 17, 2026
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 [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '895de9a3488abcdd186680f0af3cce7f2d4d4a6e', 'lessThan': '1caf737e625143c6f23c32d2b747b1a3e42e5699', 'versionType': 'git'}, {'status': 'affected', 'version': '895de9a3488abcdd186680f0af3cce7f2d4d4a6e', 'lessThan': '32edf8aa297745226854eda2d96c0fac66c1bb15', 'versionType': 'git'}, {'status': 'affected', 'version': '895de9a3488abcdd186680f0af3cce7f2d4d4a6e', 'lessThan': '973ead9e565423642e4533e1547b5d2c0476fb03', 'versionType': 'git'}, {'status': 'affected', 'version': '895de9a3488abcdd186680f0af3cce7f2d4d4a6e', 'lessThan': '33fd93961557ec8e3e9958995b28684c5f949394', 'versionType': 'git'}, {'status': 'affected', 'version': '895de9a3488abcdd186680f0af3cce7f2d4d4a6e', 'lessThan': '6d8bc0dc99472d62c57c2a3d436e6ab408592bda', 'versionType': 'git'}, {'status': 'affected', 'version': '895de9a3488abcdd186680f0af3cce7f2d4d4a6e', 'lessThan': '9571af2eec8023af9a1671b7f2cd4ab400011724', 'versionType': 'git'}, {'status': 'affected', 'version': '895de9a3488abcdd186680f0af3cce7f2d4d4a6e', 'lessThan': '88b33ee458a6ca5fbef6c53b9dba772da69dab68', 'versionType': 'git'}, {'status': 'affected', 'version': '895de9a3488abcdd186680f0af3cce7f2d4d4a6e', 'lessThan': '95cceadbfd52d7239bd730afdda0655287d77425', 'versionType': 'git'}], 'programFiles': ['net/ipv4/ip_vti.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '3.15'}, {'status': 'unaffected', 'version': '0', 'lessThan': '3.15', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['net/ipv4/ip_vti.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '895de9a3488abcdd186680f0af3cce7f2d4d4a6e', 'lessThan': '1caf737e625143c6f23c32d2b747b1a3e42e5699', 'versionType': 'git'}, {'status': 'affected', 'version': '895de9a3488abcdd186680f0af3cce7f2d4d4a6e', 'lessThan': '32edf8aa297745226854eda2d96c0fac66c1bb15', 'versionType': 'git'}, {'status': 'affected', 'version': '895de9a3488abcdd186680f0af3cce7f2d4d4a6e', 'lessThan': '973ead9e565423642e4533e1547b5d2c0476fb03', 'versionType': 'git'}, {'status': 'affected', 'version': '895de9a3488abcdd186680f0af3cce7f2d4d4a6e', 'lessThan': '33fd93961557ec8e3e9958995b28684c5f949394', 'versionType': 'git'}, {'status': 'affected', 'version': '895de9a3488abcdd186680f0af3cce7f2d4d4a6e', 'lessThan': '6d8bc0dc99472d62c57c2a3d436e6ab408592bda', 'versionType': 'git'}, {'status': 'affected', 'version': '895de9a3488abcdd186680f0af3cce7f2d4d4a6e', 'lessThan': '9571af2eec8023af9a1671b7f2cd4ab400011724', 'versionType': 'git'}, {'status': 'affected', 'version': '895de9a3488abcdd186680f0af3cce7f2d4d4a6e', 'lessThan': '88b33ee458a6ca5fbef6c53b9dba772da69dab68', 'versionType': 'git'}, {'status': 'affected', 'version': '895de9a3488abcdd186680f0af3cce7f2d4d4a6e', 'lessThan': '95cceadbfd52d7239bd730afdda0655287d77425', 'versionType': 'git'}], 'programFiles': ['net/ipv4/ip_vti.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '3.15'}, {'status': 'unaffected', 'version': '0', 'lessThan': '3.15', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['net/ipv4/ip_vti.c'], 'defaultStatus': 'affected'}] -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 15, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '895de9a3488abcdd186680f0af3cce7f2d4d4a6e', 'lessThan': '1caf737e625143c6f23c32d2b747b1a3e42e5699', 'versionType': 'git'}, {'status': 'affected', 'version': '895de9a3488abcdd186680f0af3cce7f2d4d4a6e', 'lessThan': '32edf8aa297745226854eda2d96c0fac66c1bb15', 'versionType': 'git'}, {'status': 'affected', 'version': '895de9a3488abcdd186680f0af3cce7f2d4d4a6e', 'lessThan': '973ead9e565423642e4533e1547b5d2c0476fb03', 'versionType': 'git'}, {'status': 'affected', 'version': '895de9a3488abcdd186680f0af3cce7f2d4d4a6e', 'lessThan': '33fd93961557ec8e3e9958995b28684c5f949394', 'versionType': 'git'}, {'status': 'affected', 'version': '895de9a3488abcdd186680f0af3cce7f2d4d4a6e', 'lessThan': '6d8bc0dc99472d62c57c2a3d436e6ab408592bda', 'versionType': 'git'}, {'status': 'affected', 'version': '895de9a3488abcdd186680f0af3cce7f2d4d4a6e', 'lessThan': '9571af2eec8023af9a1671b7f2cd4ab400011724', 'versionType': 'git'}, {'status': 'affected', 'version': '895de9a3488abcdd186680f0af3cce7f2d4d4a6e', 'lessThan': '88b33ee458a6ca5fbef6c53b9dba772da69dab68', 'versionType': 'git'}, {'status': 'affected', 'version': '895de9a3488abcdd186680f0af3cce7f2d4d4a6e', 'lessThan': '95cceadbfd52d7239bd730afdda0655287d77425', 'versionType': 'git'}], 'programFiles': ['net/ipv4/ip_vti.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '3.15'}, {'status': 'unaffected', 'version': '0', 'lessThan': '3.15', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['net/ipv4/ip_vti.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: net: ip_vti: require CAP_NET_ADMIN in the device netns for changelink vti_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 vti_changelink() on rtnl_dev_link_net_capable() at its top, before any attribute is parsed. Added Reference https://git.kernel.org/stable/c/1caf737e625143c6f23c32d2b747b1a3e42e5699 Added Reference https://git.kernel.org/stable/c/32edf8aa297745226854eda2d96c0fac66c1bb15 Added Reference https://git.kernel.org/stable/c/33fd93961557ec8e3e9958995b28684c5f949394 Added Reference https://git.kernel.org/stable/c/6d8bc0dc99472d62c57c2a3d436e6ab408592bda Added Reference https://git.kernel.org/stable/c/88b33ee458a6ca5fbef6c53b9dba772da69dab68 Added Reference https://git.kernel.org/stable/c/9571af2eec8023af9a1671b7f2cd4ab400011724 Added Reference https://git.kernel.org/stable/c/95cceadbfd52d7239bd730afdda0655287d77425 Added Reference https://git.kernel.org/stable/c/973ead9e565423642e4533e1547b5d2c0476fb03
EPSS is a daily estimate of the probability of exploitation activity
being observed over the next 30 days. Following chart shows the EPSS
score history of the vulnerability.