CVE-2026-31692: rtnetlink: add missing netlink_ns_capable() check for peer netns

Overview

Severity

High (CVSS 7.1)

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H/E:U

Exploit Status

Not Exploited

Patch Tuesday

2026-Apr

Released

2026-05-01

Last Updated

2026-06-17

EPSS Score

0.12% (percentile: 2.1%)

Affected Products (5)

Open Source Software

• azl3 kernel 6.6.134.1-2 on Azure Linux 3.0

Other

• 21332-17084
• 21443-17084
• 21308-17084
• 21344-17084

Revision History

• 2026-05-01: Information published.
• 2026-05-06: Information published.
• 2026-05-11: Information published.
• 2026-05-17: Information published.
• 2026-05-22: Information published.
• 2026-06-17: Information published.