8.8

CVE-2026-72061: linux Missing Authorization

CVSS: 8.8v3.1HighReceived
AliasesUBUNTU-CVE-2026-72061DEBIAN-CVE-2026-72061
Published 15-08-2026Last modified 19-10-2026
Open JSON

Vulnerability summary

CVE-2026-72061 is a high (CVSS 8.8) Missing Authorization vulnerability in linux. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 4.4% 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
0.16%
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: sit: require CAP_NET_ADMIN in the device netns for changelink ipip6_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 ipip6_changelink() on rtnl_dev_link_net_capable() at its top, before any attribute is parsed. sit was the one tunnel type not covered by the recent series that added this check to the other changelink() handlers.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.16%

Chance of exploitation in the next 30 days

Percentile

4%

Versus all other CVEs

30-day change

-0.02 pp

From 0.18% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.16%

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≥ 5e6700b3bf98fe98d630bf9c939ad4c85ce95592, < cb41b308e9d867725d965b291dd085028e36a480 | ≥ 5e6700b3bf98fe98d630bf9c939ad4c85ce95592, < c5a0ae895432596b2f464172da8218e2d84e2932 | ≥ 5e6700b3bf98fe98d630bf9c939ad4c85ce95592, < 7d139dec96691cde96cb40ed293e2d13d994fb4f | ≥ 5e6700b3bf98fe98d630bf9c939ad4c85ce95592, < 388ccffbd2e7e5e4271f291085a7451865705305 | ≥ 5e6700b3bf98fe98d630bf9c939ad4c85ce95592, < c0ea1aedb37bb979e864ed7787975434bbd9db73 | ≥ 5e6700b3bf98fe98d630bf9c939ad4c85ce95592, < 3118e97dae533fb45964b87bbed1801afcff7c65 | ≥ 5e6700b3bf98fe98d630bf9c939ad4c85ce95592, < 99ae3248b33df94201915d9c32e7470cdf08cfcd | ≥ 5e6700b3bf98fe98d630bf9c939ad4c85ce95592, < 27ccb68e7cccead5d8c611665a45d23032d468b3 | 3.11

3 vendors · 171 products

References

27 links
Show all 27 references