CVE-2019-25076

5.8 MEDIUM 2% exploit odds No fix listed

What it is

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.

At a glance

Exploitability: Can be exploited over the network without logging in. Limited direct impact.
Exploit odds: 2.4% chance of exploitation in the next 30 days (EPSS).
Fix: No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

2022-09-08 23:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 02:31 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 2.4% in the next 30 days (EPSS).
Severity: 5.8 MEDIUM (CVSS).
Fix: none linked yet, which raises it.

Details

Published: 2022-09-08 23:15 UTC
Last modified: 2026-06-17 02:31 UTC
Exploit probability: 2.4% · EPSS, next 30 days
Record status: Modified

Affected

Openvswitch ≤ 2.17.2
Openvswitch 3.0.0

Attack profile CVSS 3.1 · 5.8

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None
Scope: Changed
Confidentiality: None
Integrity: None
Availability: Low

Raw vector

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

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2019-25076.md and follow it. Check whether this project is affected by CVE-2019-25076. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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References

NVD record · CVE.org record