8.8

CVE-2026-72054: linux Missing Authorization

CVSS: 8.8v3.1HighReceived
AliasesUBUNTU-CVE-2026-72054DEBIAN-CVE-2026-72054
Published 15-08-2026Last modified 19-10-2026
Open JSON

Vulnerability summary

CVE-2026-72054 is a high (CVSS 8.8) Missing Authorization vulnerability in linux. EPSS estimates a 0.15% chance of exploitation in the next 30 days, higher than 3.8% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.15%
0%100%
Low · -0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 30 · Related 30
OPENSUSE-SU-2026:21910-1SUSE-SU-2026:23881-1SUSE-SU-2026:23887-1SUSE-SU-2026:23897-1SUSE-SU-2026:23902-1SUSE-SU-2026:24181-1

Timeline

  1. 15-08-2026
    PublishedVulnerability first disclosed.
  2. 19-10-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.15%

Chance of exploitation in the next 30 days

Percentile

4%

Versus all other CVEs

30-day change

-0.02 pp

From 0.17% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.15%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu169 products
  • linuxAll versions (No fix recorded) | < 5.15.0-198.208 | < 6.8.0-147.147 | < 7.0.0-38.38
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1117.124 | < 6.8.0-1067.70 | < 7.0.0-1014.14
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.180-1 | < 6.12.100-1 | < 7.1.5-1
Linux1 product
  • linux≥ 895de9a3488abcdd186680f0af3cce7f2d4d4a6e, < 1caf737e625143c6f23c32d2b747b1a3e42e5699 | ≥ 895de9a3488abcdd186680f0af3cce7f2d4d4a6e, < 32edf8aa297745226854eda2d96c0fac66c1bb15 | ≥ 895de9a3488abcdd186680f0af3cce7f2d4d4a6e, < 973ead9e565423642e4533e1547b5d2c0476fb03 | ≥ 895de9a3488abcdd186680f0af3cce7f2d4d4a6e, < 33fd93961557ec8e3e9958995b28684c5f949394 | ≥ 895de9a3488abcdd186680f0af3cce7f2d4d4a6e, < 6d8bc0dc99472d62c57c2a3d436e6ab408592bda | ≥ 895de9a3488abcdd186680f0af3cce7f2d4d4a6e, < 9571af2eec8023af9a1671b7f2cd4ab400011724 | ≥ 895de9a3488abcdd186680f0af3cce7f2d4d4a6e, < 88b33ee458a6ca5fbef6c53b9dba772da69dab68 | ≥ 895de9a3488abcdd186680f0af3cce7f2d4d4a6e, < 95cceadbfd52d7239bd730afdda0655287d77425 | 3.15

3 vendors · 171 products

References

27 links
Show all 27 references