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CVE-2026-5367

Ovn: ovn: information disclosure via crafted dhcpv6 packets

Published: Apr 24, 2026Updated: Jul 15, 2026 Sources: CVE List NVDCWE-130
8.6HIGH
NVD MITRE
EPSS Score
0.9%
Top 44.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Workaround Only
Self-Check
OpenVAS

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:CC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-130

Affected Products

Red Hat
commercial·US
Fast Datapath for Red Hat Enterprise Linux 10On-prem
Operating Systems / linux-distro
Fast Datapath for Red Hat Enterprise Linux 8On-premOS
Operating Systems / linux-distro
Fast Datapath for Red Hat Enterprise Linux 9On-premOS
Operating Systems / linux-distro
Fast Datapath for RHEL 8On-premLibrary
Operating Systems / linux-distro
Fast Datapath for RHEL 9On-premLibrary
Operating Systems / linux-distro
Red Hat OpenShift Container Platform 4SaaSSaaS Service
Cloud & SaaS / container-orchestration

Exploitability

Workaround Available
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References

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
and 11 more references View all →

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