EUVD-2026-79141
GHSA-rxmx-2jm2-79fq
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/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
2DescriptionCVE.org
On affected platforms running Arista EOS with password authentication configured, a specially crafted password can create orphan authentication sessions. Repeated exploitation of this issue can exhaust available authentication resources, resulting in legitimate users being unable to log in to the device.
This issue was discovered internally by Arista, and the company is not aware of any malicious exploitation of this vulnerability in customer networks.
AnalysisAI
Arista EOS devices with password-based authentication enabled can accumulate orphan authentication sessions when a specially crafted password string is submitted to the management login path. Repeatedly sending such passwords exhausts the device's authentication resources, so legitimate administrators are locked out of the switch. …
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External POC / Exploit Code
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