CVE-2026-5367highCWE-130

Ovn: ovn: information disclosure via crafted dhcpv6 packets

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 8.6epss 0.9%

exploitation probability

0.9%top 45% of all CVEs

observed exploitation

nono source reports it

A flaw was found in OVN (Open Virtual Network). A remote attacker, by sending crafted DHCPv6 (Dynamic Host Configuration Protocol for IPv6) SOLICIT packets with an inflated Client ID length, could cause the ovn-controller to read beyond the bounds of a packet. This out-of-bounds read can lead to the disclosure of sensitive information stored in heap memory, which is then returned to the attacker's virtual machine port.

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

Affected products

Red Hat · Fast Datapath for Red Hat Enterprise Linux 10 Red Hat · Fast Datapath for Red Hat Enterprise Linux 8 Red Hat · Fast Datapath for Red Hat Enterprise Linux 9 Red Hat · Fast Datapath for RHEL 8 Red Hat · Fast Datapath for RHEL 9 Red Hat · Red Hat OpenShift Container Platform 4

References