CVE-2019-25076: Openvswitch

Medium severity, CVSS 5.8. EPSS: 2.3% chance of exploitation in the next 30 days.

The TSS (Tuple Space Search) algorithm in Open vSwitch 2.x through 2.17.2 and 3.0.0 allows remote attackers to cause a denial of service (delays of legitimate traffic) via crafted packet data that requires excessive evaluation time within the packet classification algorithm for the MegaFlow cache, aka a Tuple Space Explosion (TSE) attack.

Affected products

• Openvswitch Openvswitch: from 2.0.0, up to and including 2.17.2; version 3.0.0 only

Published 2022-09-08. Last modified 2026-06-17.