CVE-2026-34956
MEDIUM
NVD
CVSS Score
5.9
Severity
MEDIUM
Published
May 05, 2026
Vendor
unknown
Description
A flaw was found in Open vSwitch. When Open vSwitch is configured with a conntrack flow using FTP helpers over the userspace datapath, a remote attacker can send a specially crafted FTP stream with an EPASV command exceeding 255 characters. This heap access error can lead to a crash, resulting in a Denial of Service (DoS) for the affected system.