8.8

CVE-2026-72052: linux Missing Authorization

CVSS: 8.8v3.1HighReceived
AliasesUBUNTU-CVE-2026-72052DEBIAN-CVE-2026-72052
Published 15-08-2026Last modified 19-10-2026
Open JSON

Vulnerability summary

CVE-2026-72052 is a high (CVSS 8.8) Missing Authorization vulnerability in linux. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 5.8% 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
0.17%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 31 · Related 28
OPENSUSE-SU-2026:21910-1RHSA-2026:75746RHSA-2026:75747RHSA-2026:76739SUSE-SU-2026:23881-1SUSE-SU-2026:23887-1

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: ip6_gre: require CAP_NET_ADMIN in the device netns for changelink ip6gre_changelink() and ip6erspan_changelink() operate 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 both ops on rtnl_dev_link_net_capable() at their top, before any attribute is parsed.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.17%

Chance of exploitation in the next 30 days

Percentile

6%

Versus all other CVEs

30-day change

0.00 pp

From 0.17% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.17%

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

Ubuntu165 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≥ 690afc165bb314354667f67157c1a1aea7dc797a, < 129f8939e5af683cec3a1a5edcb40a64636ad81e | ≥ 690afc165bb314354667f67157c1a1aea7dc797a, < e3724dedf57761c6de52f4d604ec74f66fd61611 | ≥ 690afc165bb314354667f67157c1a1aea7dc797a, < 220162c9fedbe992da70d70f50a10da4f45f914c | ≥ 690afc165bb314354667f67157c1a1aea7dc797a, < 1d4d8ee002083ca4ead5353662bf8362428af57f | ≥ 690afc165bb314354667f67157c1a1aea7dc797a, < 0caa9f348f8b5356900de77b0bb89a697c4aff20 | ≥ 690afc165bb314354667f67157c1a1aea7dc797a, < 03d8843b143ebbbfaf48511922abc6e886575a61 | ≥ 690afc165bb314354667f67157c1a1aea7dc797a, < c38c8b0db3c65b597e7ece317b6cb59de3d15e69 | ≥ 690afc165bb314354667f67157c1a1aea7dc797a, < f00a50876d2818bd6dc86fa98b3ef360884c53c8 | d0201d2405dac8d9b16773e97709925e397552d0 | 7943bb0f06365cf5e32f3cf8a6b29eeae981fb8a | ≥ 4.19.100, < 4.20 | ≥ 5.4.16, < 5.5 | 5.5

3 vendors · 167 products

References

27 links
Show all 27 references