CVE-2025-0650: high-severity vulnerability in ovn
Ovn: egress acls may be bypassed via specially crafted udp packet
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.1epss 0.9%
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.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
ovnRed Hat · Fast Datapath for Red Hat Enterprise Linux 8Red Hat · Fast Datapath for Red Hat Enterprise Linux 9Red Hat · Red Hat OpenShift Container Platform 4Related CVEs — ovn
In the same product, most dangerous first.
CVE-2026-5367HIGHOvn: ovn: information disclosure via crafted dhcpv6 packetsEPSS 0.9%CVE-2024-2182MEDIUMOvn: insufficient validation of bfd packets may lead to denial of serviceEPSS 0.8%CVE-2026-5265MEDIUMOvn: ovn: heap over-read in icmp error response generationEPSS 0.6%CVE-2024-11614HIGHDpdk: denial of service from malicious guest on hypervisors using dpdk vhost libraryEPSS 0.6%CVE-2024-52336HIGHTuned: `script_pre` and `script_post` options allow to pass arbitrary scripts executed by rootEPSS 0.3%CVE-2024-52337MEDIUMTuned: improper sanitization of `instance_name` parameter of the `instance_create()` methodEPSS 0.3%
References
https://access.redhat.com/errata/RHSA-2025:1083https://access.redhat.com/errata/RHSA-2025:1084https://access.redhat.com/errata/RHSA-2025:1085https://access.redhat.com/errata/RHSA-2025:1086https://access.redhat.com/errata/RHSA-2025:1087https://access.redhat.com/errata/RHSA-2025:1088https://access.redhat.com/errata/RHSA-2025:1089https://access.redhat.com/errata/RHSA-2025:1090https://access.redhat.com/errata/RHSA-2025:1091https://access.redhat.com/errata/RHSA-2025:1092https://access.redhat.com/errata/RHSA-2025:1093https://access.redhat.com/errata/RHSA-2025:1094