CVE-2026-5367
High · 8.6CVSS
8.6
EPSS
0.9%
Published
Apr 24, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| openSUSE:Leap 16.0 | openvswitch | 0 | 3.5.4-160000.4.1 |
| openSUSE:Tumbleweed | openvswitch | 0 | 3.7.1-34.1 |
Related vulnerabilities
- CVE-2026-34956 A flaw was found in Open vSwitch. Also affects openvswitch
- CVE-2026-5265 When generating an ICMP Destination Unreachable or Packet Too Big response, the handler… Also affects openvswitch
- CVE-2025-0650 A flaw was found in the Open Virtual Network (OVN). Also affects openvswitch
- CVE-2023-3966 A flaw was found in Open vSwitch where multiple versions are vulnerable to crafted Geneve… Also affects openvswitch
- CVE-2023-5366 A flaw was found in Open vSwitch that allows ICMPv6 Neighbor Advertisement packets… Also affects openvswitch
- CVE-2026-15418 In the silabser.sys driver for CP210x devices v11.5.0 and earlier, a local unprivileged… CWE-130
- CVE-2026-5706 In Bluetooth Mesh SDK 6.1.4 and earlier, malformed extended advertisements can trigger… CWE-130
- CVE-2026-71402 An out-of-bounds read was found in the DHCPv4 packet capture code of wicked. CWE-130