Security Advisory 0217

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-120977
StatePUBLISHED
AssignerArista
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-11-10 20:18:52 UTC
Updated2026-11-10 20:18:52 UTC
DescriptionOn affected platforms running Arista EOS with 802.1X with Dynamic Host Configuration Protocol (DHCP) device profiling enabled, a network-adjacent attacker can send a crafted DHCP packet to force the device to record a spoofed device profile. This may potentially allow the authenticated supplicant to acquire unauthorized access to a network segment with elevated privileges.

Risk And Classification

Primary CVSS: v4.0 7.1 HIGH from [email protected]

CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:L/SI:H/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

Problem Types: CWE-807 | CWE-807 CWE-807 Reliance on Untrusted Inputs in a Security Decision

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary7.1HIGHCVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:L/SI:H/SA:N/E:X/C...
4.0CNADECLARED7.1HIGHCVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:L/SI:H/SA:N
3.1[email protected]Secondary8.2HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N
3.1CNADECLARED8.2HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N

CVSS v4.0 Breakdown

Attack Vector
Adjacent
Attack Complexity
Low
Attack Requirements
Present
Privileges Required
None
User Interaction
None
Confidentiality
None
Integrity
High
Availability
None
Sub Conf.
Low
Sub Integrity
High
Sub Availability
None

CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:L/SI:H/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

CVSS v3.1 Breakdown

Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
High
Availability
None

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Arista Networks EOS affected 4.31.2F 4.32.0F custom 710 Series, 720D Series, 720XP/722XPM Series, 750X Series, 7010TX Series, 7020R/R4 Series, 7260X/X3 Series, 7280R/R2/R3/R4 Series, 7050X3/X4 Series, 7060X/X2/X4/X5/X6/XE7 Series, 7300X/X3 Series, 7320X Series, 7358X4 Series, 7368X4 Series, 7388X5 Series, 7500R/R2/R3 Series, 7700R4 Series, 7800R3/R4 Series
CNA Arista Networks EOS affected 4.32.0F 4.33.0F custom 710 Series, 720D Series, 720XP/722XPM Series, 750X Series, 7010TX Series, 7020R/R4 Series, 7260X/X3 Series, 7280R/R2/R3/R4 Series, 7050X3/X4 Series, 7060X/X2/X4/X5/X6/XE7 Series, 7300X/X3 Series, 7320X Series, 7358X4 Series, 7368X4 Series, 7388X5 Series, 7500R/R2/R3 Series, 7700R4 Series, 7800R3/R4 Series
CNA Arista Networks EOS affected 4.33.0F 4.33.9M custom 710 Series, 720D Series, 720XP/722XPM Series, 750X Series, 7010TX Series, 7020R/R4 Series, 7260X/X3 Series, 7280R/R2/R3/R4 Series, 7050X3/X4 Series, 7060X/X2/X4/X5/X6/XE7 Series, 7300X/X3 Series, 7320X Series, 7358X4 Series, 7368X4 Series, 7388X5 Series, 7500R/R2/R3 Series, 7700R4 Series, 7800R3/R4 Series
CNA Arista Networks EOS affected 4.34.0F 4.34.7M custom 710 Series, 720D Series, 720XP/722XPM Series, 750X Series, 7010TX Series, 7020R/R4 Series, 7260X/X3 Series, 7280R/R2/R3/R4 Series, 7050X3/X4 Series, 7060X/X2/X4/X5/X6/XE7 Series, 7300X/X3 Series, 7320X Series, 7358X4 Series, 7368X4 Series, 7388X5 Series, 7500R/R2/R3 Series, 7700R4 Series, 7800R3/R4 Series
CNA Arista Networks EOS affected 4.35.0F 4.35.5M custom 710 Series, 720D Series, 720XP/722XPM Series, 750X Series, 7010TX Series, 7020R/R4 Series, 7260X/X3 Series, 7280R/R2/R3/R4 Series, 7050X3/X4 Series, 7060X/X2/X4/X5/X6/XE7 Series, 7300X/X3 Series, 7320X Series, 7358X4 Series, 7368X4 Series, 7388X5 Series, 7500R/R2/R3 Series, 7700R4 Series, 7800R3/R4 Series
CNA Arista Networks EOS affected 4.36.0F 4.36.2F custom 710 Series, 720D Series, 720XP/722XPM Series, 750X Series, 7010TX Series, 7020R/R4 Series, 7260X/X3 Series, 7280R/R2/R3/R4 Series, 7050X3/X4 Series, 7060X/X2/X4/X5/X6/XE7 Series, 7300X/X3 Series, 7320X Series, 7358X4 Series, 7368X4 Series, 7388X5 Series, 7500R/R2/R3 Series, 7700R4 Series, 7800R3/R4 Series

References

ReferenceSourceLinkTags
www.arista.com/en/support/advisories-notices/security-advisory/25039-securit... [email protected] www.arista.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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