CVE-2026-33811: Crash when handling long CNAME response in net

Overview

Severity

High (CVSS 7.5)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-May

Released

2026-05-10

Last Updated

2026-06-09

EPSS Score

0.59% (percentile: 43.5%)

Affected Products (6)

Other

• 21203-17084
• 21206-17084
• 21021-17084
• 21411-17084
• 21423-17084

Open Source Software

• azl3 python-tensorboard 2.16.2-6 on Azure Linux 3.0

Revision History

• 2026-05-10: Information published.
• 2026-05-11: Information published.
• 2026-05-13: Information published.
• 2026-05-19: Information published.
• 2026-06-03: Information published.
• 2026-06-09: Information published.