Ovn: ovn: information disclosure via crafted dhcpv6 packets
CVSS score
8.6
EPSS probability
%0.9
Risk score
0.1
Published
5 mo ago
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Vulnerability description
DayBreach CVE AI Research
CVE-2026-5367 has vendor, distribution, patch and security-source records on file. We can compare them and prepare an explanation linked to the evidence.
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.
IMPACT: Affected Products and Software
Affected Products
The following products are affected by CVE-2026-5367 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.
| ID | VENDOR | PRODUCT | ACTION |
|---|---|---|---|
| 1 | Red Hat | Fast Datapath for Red Hat Enterprise Linux 10 | View |
| 2 | Red Hat | Fast Datapath for Red Hat Enterprise Linux 10 | View |
| 3 | Red Hat | Fast Datapath for Red Hat Enterprise Linux 8 | View |
| 4 | Red Hat | Fast Datapath for Red Hat Enterprise Linux 8 | View |
| 5 | Red Hat | Fast Datapath for Red Hat Enterprise Linux 9 | View |
| 6 | Red Hat | Fast Datapath for Red Hat Enterprise Linux 9 | View |
| 7 | Red Hat | Fast Datapath for Red Hat Enterprise Linux 9 | View |
| 8 | Red Hat | Fast Datapath for Red Hat Enterprise Linux 9 | View |
| 9 | Red Hat | Fast Datapath for Red Hat Enterprise Linux 9 | View |
| 10 | Red Hat | Fast Datapath for RHEL 8 | View |
| 11 | Red Hat | Fast Datapath for RHEL 9 | View |
| 12 | Red Hat | Red Hat OpenShift Container Platform 4 | View |
RED HAT CSAF/VEX: Product Impact Check
SCORING: CVSS from Multiple Sources
CVSS Scores
The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.
| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| 8.6 | CVSS V31 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N | NVD |
| 8.6 | CVSS V3_1 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N | CVE CNA |
| 8.6 | CVSS V3_1 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N | CVE ADP |
Patch and Remediation Guide
Solution & Remediation Advisory
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Public exploit and active exploitation status
Verified exploit intelligence
No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.
Weakness Classification and Attack Patterns (CWE & CAPEC)
CWE - Common Weakness Enumeration
While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-5367 is associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-5367 weaknesses.
Attack Vector and Accessibility
Official Sources and Advisories
Similar Vulnerabilities
Get this vulnerability through the API
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curl -H "x-api-key: $DAYBREACH_API_KEY" \ "https://api.daybreach.dev/api/v1/intel/cves/CVE-2026-5367"