CVE-2026-5367 | OVN Open Virtual Network DHCPv6 Client ID out-of-bounds

VDB-358489 · CVE-2026-5367 · GCVE-0-2026-5367 OVN OPEN VIRTUAL NETWORK DHCPV6 CLIENT ID OUT-OF-BOUNDS HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 4.1 $0-$5k 3.19+ Summaryinfo A vulnerability was found in OVN Open Virtual Network. It has been classified as problematic. Affected is an unknown function of the component DHCPv6 Client ID Handler. This manipulation causes out-of-bounds. The identification of this vulnerability is CVE-2026-5367. The attack needs to be done within the local network. There is no exploit available. Upgrading the affected component is recommended. Detailsinfo A vulnerability classified as problematic was found in OVN Open Virtual Network (unknown version). Affected by this vulnerability is an unknown code block of the component DHCPv6 Client ID Handler. The manipulation with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality. The advisory is shared at seclists.org. This vulnerability is known as CVE-2026-5367. The exploitation appears to be easy. Access to the local network is required for this attack. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. Upgrading eliminates this vulnerability. Productinfo Vendor OVN Name Open Virtual Network CPE 2.3info 🔒 CPE 2.2info 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 4.3 VulDB Meta Temp Score: 4.1 VulDB Base Score: 4.3 VulDB Temp Score: 4.1 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Out-of-bounds CWE: CWE-125 / CWE-119 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Partially Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Timelineinfo 04/21/2026 Advisory disclosed 04/21/2026 +0 days VulDB entry created 04/21/2026 +0 days VulDB entry last update Sourcesinfo Advisory: seclists.org Status: Confirmed CVE: CVE-2026-5367 (🔒) GCVE (CVE): GCVE-0-2026-5367 GCVE (VulDB): GCVE-100-358489 Entryinfo Created: 04/21/2026 16:36 Changes: 04/21/2026 16:36 (50) Complete: 🔍 Cache ID: 99:F4C:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸