CVE-2026-34956: Openvswitch: open vswitch: denial of service via malformed ftp epasv command

Overview

Severity

Medium (CVSS 5.9)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-May

Released

2026-05-15

Last Updated

2026-06-03

EPSS Score

0.40% (percentile: 32.3%)

Affected Products (2)

Other

• 21392-17084
• 21338-17084

Revision History

• 2026-05-15: Information published.
• 2026-05-20: Information published.
• 2026-06-03: Information published.