EUVD-2026-80007
GHSA-qg3p-gw27-mvmj
Severity by source
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Primary rating from Vendor (arista) · only source for this CVE.
CVSS VectorVendor: arista
Lifecycle Timeline
1DescriptionCVE.org
On affected platforms running Arista EOS with Dynamic Host Configuration Protocol (DHCP) relay configured, an unauthenticated attacker with network access could send a crafted DHCP reply packet from an IP address that is not configured as a helper address, and the relay agent would forward it to clients without validating the source. This could allow the attacker to supply clients with malicious network configuration parameters, potentially resulting in traffic interception or denial of service for affected clients.
AnalysisAI
Let me produce the JSON. Key facts: Arista EOS DHCP relay, unauthenticated attacker with adjacent network access (AV:A), sends crafted DHCP reply from non-helper address, relay forwards without source validation. …
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Same technique Denial Of Service
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External POC / Exploit Code
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