CVE-2025-0650

What it is

A flaw was found in the Open Virtual Network (OVN). Specially crafted UDP packets may bypass egress access control lists (ACLs) in OVN installations configured with a logical switch with DNS records set on it and if the same switch has any egress ACLs configured. This issue can lead to unauthorized access to virtual machines and containers running on the OVN network.

At a glance

Exploitability

Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.

Exploit odds

0.9% chance of exploitation in the next 30 days (EPSS).

Fix

No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

1. 2025-01-23 17:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 08:26 UTC Last updatedMost recent change to the record

Details

Published

2025-01-23 17:15 UTC

Last modified

2026-06-17 08:26 UTC

Exploit probability

0.9% · EPSS, next 30 days

Weakness

CWE-284 · Improper access control

Record status

Deferred

Attack profile CVSS 3.1 · 8.1

Attack vector

Network

Complexity

High

Privileges needed

None

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High