On affected platforms running Arista EOS with gRPC Network Management Interface (gNMI) enabled, a specially crafted request could allow a malicious authenticated client with gRPC Network Management Interface (gNMI) access to execute arbitrary code with root privileges on the switch.
" } ] } ], "affected": [ { "vendor": "Arista Networks", "product": "EOS", "platforms": [ "710 Series", "720D Series", "720XP/722XPM Series", "750X Series", "7010TX Series", "7020R/R4 Series", "7130 Series (EOS)", "7170 Series", "7050X3/X4 Series", "7060X/X2/X4/X5/X6 Series", "7260X/X3 Series", "7280R/R2/R3/R4 Series", "7300X/X3 Series", "7320X Series", "7358X4 Series", "7368X4 Series", "7388X5 Series", "7500R/R2/R3 Series", "7800R3/R4 Series", "7700R4 Series", "AWE 5000 Series", "AWE 7200R Series", "CloudEOS", "cEOS-lab", "vEOS-lab", "CloudVision eXchange, virtual or physical appliance" ], "versions": [ { "version": "4.29.0F", "status": "affected", "versionType": "custom", "lessThan": "4.30.0F" }, { "version": "4.30.0F", "status": "affected", "versionType": "custom", "lessThan": "4.31.0F" }, { "version": "4.31.0F", "status": "affected", "versionType": "custom", "lessThan": "4.32.0F" }, { "version": "4.32.0F", "status": "affected", "versionType": "custom", "lessThan": "4.33.0F" }, { "version": "4.33.0F", "status": "affected", "versionType": "custom", "lessThanOrEqual": "4.33.8M" }, { "version": "4.34.0F", "status": "affected", "versionType": "custom", "lessThanOrEqual": "4.34.7M" }, { "version": "4.35.0F", "status": "affected", "versionType": "custom", "lessThanOrEqual": "4.35.5M" }, { "version": "4.36.0F", "status": "affected", "versionType": "custom", "lessThanOrEqual": "4.36.0.1F" } ], "defaultStatus": "unaffected" } ], "problemTypes": [ { "descriptions": [ { "type": "CWE", "lang": "en", "cweId": "CWE-94", "description": "CWE-94 Improper Control of Generation of Code ('Code Injection')" } ] } ], "impacts": [ { "capecId": "CAPEC-242", "descriptions": [ { "lang": "en", "value": "CAPEC-242 Code Injection" } ] } ], "metrics": [ { "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ], "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH" } }, { "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ], "cvssV4_0": { "version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "baseScore": 8.7, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE" } } ], "configurations": [ { "lang": "en", "value": "In order to be vulnerable to CVE-2026-73464, the following condition must be met:\n\ngNMI transport must be enabled:\n\n switch(config)#show management api gnmi\n Transport: default\n Enabled: yes\n Server: running on port 6030, in default VRF\n SSL profile: none\n QoS DSCP: none\n Connection limit: 100\n Authorization required: no\n Accounting requests: no\n Notification timestamp: last change time\n Listen addresses: ::\n Authentication username priority: x509-spiffe, metadata, x509-common-name\n Config-commands AAA accounting: enabled\n Config-commands AAA authorization: enabled\n\nIf a gNMI transport is not configured there is no exposure to this issue and the message will look something like:\n\n switch(config)#show management api gnmi\n Enabled: no transports enabled", "supportingMedia": [ { "type": "text/html", "base64": false, "value": "In order to be vulnerable to CVE-2026-73464, the following condition must be met:
gNMI transport must be enabled:
\nswitch(config)#show management api gnmi\nTransport: default\nEnabled: yes\nServer: running on port 6030, in default VRF\nSSL profile: none\nQoS DSCP: none\nConnection limit: 100\nAuthorization required: no\nAccounting requests: no\nNotification timestamp: last change time\nListen addresses: ::\nAuthentication username priority: x509-spiffe, metadata, x509-common-name\nConfig-commands AAA accounting: enabled\nConfig-commands AAA authorization: enabled\n
If a gNMI transport is not configured there is no exposure to this issue and the message will look something like:
\nswitch(config)#show management api gnmi\nEnabled: no transports enabled\n" } ] } ], "workarounds": [ { "lang": "en", "value": "Disable any gNMI transports:\n\n management api gnmi\n no transport grpc
Disable any gNMI transports:
\nmanagement api gnmi\n no transport grpc <name>\n
Disabling all gNMI transports makes gNMI, gNOI, and gNSI services unavailable. If no RESTCONF or NETCONF transports are configured, the OpenConfig/Octa agent will also stop. CloudVision provisioning via TerminAttr is unaffected. All services resume when a gNMI transport is re-enabled.
Note: This mitigation is not applicable to DMF-managed EOS switches. gNMI transports are enabled by default on these platforms and cannot be disabled.
" } ] } ], "solutions": [ { "lang": "en", "value": "The following EOS releases contain the fix for this vulnerability:\n - 4.33.9M and later releases in the 4.33.x train\n - 4.34.7.1M and later releases in the 4.34.x train\n - 4.35.6M and later releases in the 4.35.x train\n - 4.36.1F and later releases in the 4.36.x train\n\nNo hotfix is available for this vulnerability.", "supportingMedia": [ { "type": "text/html", "base64": false, "value": "The following EOS releases contain the fix for this vulnerability:
No hotfix is available for this vulnerability.
" } ] } ], "source": { "defects": [ "BUG 1602598", "BUG 1966288" ], "advisory": "Security Advisory 0166", "discovery": "INTERNAL" }, "references": [ { "url": "https://www.arista.com/en/support/advisories-notices/security-advisory/24722-security-advisory-0166", "name": "Arista Networks Security Advisory 0166", "tags": [ "vendor-advisory" ] } ] }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-09-16T00:00:00+00:00", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3", "id": "CVE-2026-73464" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-17T03:56:52.621Z" } } ] } }