CVE-2026-5367
HIGH EPSS 54.2%
Published Apr 24, 20262mo ago · Modified Jun 17, 20262w ago
8.6 CVSS 3.1
Published Apr 24, 2026 2mo ago
Last Modified Jun 17, 2026 2w ago
Description
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 Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Changed
Confidentiality High
Integrity None
Availability None
Threat Intelligence
EPSS Exploit Probability
54.2% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-130
References 13
- openwall.com http://www.openwall.com/lists/oss-security/2026/04/20/3
- openwall.com http://www.openwall.com/lists/oss-security/2026/04/20/5
- access.redhat.com https://access.redhat.com/errata/RHSA-2026:11694
- access.redhat.com https://access.redhat.com/errata/RHSA-2026:11695
- access.redhat.com https://access.redhat.com/errata/RHSA-2026:11696
- access.redhat.com https://access.redhat.com/errata/RHSA-2026:11698
- access.redhat.com https://access.redhat.com/errata/RHSA-2026:11700
- access.redhat.com https://access.redhat.com/errata/RHSA-2026:11701
- access.redhat.com https://access.redhat.com/errata/RHSA-2026:11702
- access.redhat.com https://access.redhat.com/errata/RHSA-2026:22110
- access.redhat.com https://access.redhat.com/errata/RHSA-2026:22111
- access.redhat.com https://access.redhat.com/security/cve/CVE-2026-5367
- bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=2455863
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.