CVE-2025-0650 – OVN DNS Record Egress ACL Bypass

The following table lists the changes that have been made to the
CVE-2025-0650 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by [email protected]

    Jan. 23, 2025

    Action Type Old Value New Value
    Added Description 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.
    Added CVSS V3.1 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
    Added CWE CWE-284
    Added Reference https://access.redhat.com/security/cve/CVE-2025-0650
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2339537
    Added Reference https://www.openwall.com/lists/oss-security/2025/01/22/5
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