CVE-2026-72136: linux
Vulnerability summary
CVE-2026-72136 is a high (CVSS 8.8) vulnerability in linux. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 5.8% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 29 · Related 29Timeline
- 15-08-2026PublishedVulnerability first disclosed.
- 16-10-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: xfrm: xfrm_interface: require CAP_NET_ADMIN in the device netns for changelink xfrmi_changelink() operates on at most two netns, dev_net(dev) and the interface link netns xi->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 xi->net can rewrite an interface that lives in xi->net. Gate xfrmi_changelink() on rtnl_dev_link_net_capable() at its top, before any attribute is parsed.
CVSS metrics
4 scores · 4 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated8.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- NVDNIST8.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
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 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
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≥ f203b76d78092faf248db3f851840fbecf80b40e, < 04c1aa57d08471b1953bf27c84ac9b3d78d71831 | ≥ f203b76d78092faf248db3f851840fbecf80b40e, < bdfd1c21d90e628a58a9de79e024cdfcbedfa15c | ≥ f203b76d78092faf248db3f851840fbecf80b40e, < 80ec68bba11f7f387c0e4099c2d7b2c84943eb99 | ≥ f203b76d78092faf248db3f851840fbecf80b40e, < e9c90756f10da334fb31552e52c61f1dba69f491 | ≥ f203b76d78092faf248db3f851840fbecf80b40e, < 37b61946d278c7deb0d40ba8f2b6fc0478d61dab | ≥ f203b76d78092faf248db3f851840fbecf80b40e, < 8ca2a19a987a7d1cb4c916ed9723a1c6993b4276 | ≥ f203b76d78092faf248db3f851840fbecf80b40e, < 3ba2b2ef7d6a63b190f15cfc2b4ba0fba59928ea | ≥ f203b76d78092faf248db3f851840fbecf80b40e, < 095515d89b19b6cc19dfcdc846f97403ed1ebce3 | 4.19
3 vendors · 167 products