Description
A flaw was found in the Open Virtual Network (OVN). In OVN clusters where BFD is used between hypervisors for high availability, an attacker can inject specially crafted BFD packets from inside unprivileged workloads, including virtual machines or containers, that can trigger a denial of service.
References10
- access.redhat.com/errata/RHSA-2024:1385
- access.redhat.com/errata/RHSA-2024:1386
- access.redhat.com/errata/RHSA-2024:1387
- access.redhat.com/errata/RHSA-2024:1388
- access.redhat.com/errata/RHSA-2024:1390
- access.redhat.com/errata/RHSA-2024:1391
- access.redhat.com/errata/RHSA-2024:1392
- access.redhat.com/errata/RHSA-2024:1393
- access.redhat.com/errata/RHSA-2024:1394
- access.redhat.com/errata/RHSA-2024:4035
Metrics
- CVSS 3.1
-
6.5
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 1% percentile: 56 · as of 5 November 2026
- CWE
- CWE-346
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.