{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-73461", "assignerOrgId": "c8b34d1a-69ae-45c3-88fe-f3b3d44f39b7", "state": "PUBLISHED", "assignerShortName": "Arista", "dateReserved": "2026-08-12T16:45:03.511Z", "datePublished": "2026-09-16T08:01:20.911Z", "dateUpdated": "2026-09-16T08:01:20.911Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "c8b34d1a-69ae-45c3-88fe-f3b3d44f39b7", "shortName": "Arista", "dateUpdated": "2026-09-16T08:01:20.911Z"}, "datePublic": "2026-09-09T00:00:00.000Z", "title": "Security Advisory 0163", "descriptions": [{"lang": "en", "value": "On affected EOS platforms with AAA-based gRPC authorization enabled for OpenConfig, gRPC requests of an authenticated user to OpenConfig may use the wrong privilege level, resulting in an authorization using the wrong AAA method list. This does not impact non-gRPC OpenConfig requests such as NETCONF.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>On affected EOS platforms with AAA-based gRPC authorization enabled for OpenConfig, gRPC requests of an authenticated user to OpenConfig may use the wrong privilege level, resulting in an authorization using the wrong AAA method list. This does not impact non-gRPC OpenConfig requests such as NETCONF.</p>"}]}], "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"], "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", "lessThanOrEqual": "4.32.11M"}, {"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-266", "description": "CWE-266 Incorrect Privilege Assignment"}]}], "impacts": [{"capecId": "CAPEC-122", "descriptions": [{"lang": "en", "value": "CAPEC-122 Privilege Abuse"}]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H", "baseScore": 8, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "CHANGED", "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:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H", "baseScore": 9.4, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "HIGH", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "subAvailabilityImpact": "HIGH"}}], "configurations": [{"lang": "en", "value": "The following conditions must both be met for this vulnerability to be exploitable:\n\n1. OpenConfig gRPC transport must have an SSL profile configured with request authorization enabled:\n\n Transport: default\n SSL profile: oc\n Authorization required: yes\n\n2. The SSL profile must be configured with a trust certificate.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>The following conditions must both be met for this vulnerability to be exploitable:</p><ol><li>OpenConfig gRPC transport must have an SSL profile configured with request authorization enabled:<pre>\nTransport: default\nSSL profile: oc\nAuthorization required: yes\n</pre></li><li>The SSL profile must be configured with a trust certificate.</li></ol>"}]}], "workarounds": [{"lang": "en", "value": "Ensure that the privilege level 0 AAA authorization method list includes methods beyond 'none' to prevent unintended access escalation:\n\n aaa authorization exec default local group tacacs+\n aaa authorization commands 0 default local group tacacs+\n\nTo detect potential exploitation, enable AAA accounting and monitor logs for cases where a user's privilege level in gRPC requests does not match their defined privilege level (e.g., a user with privilege 9 appearing as priv-lvl=0 in gRPC requests).", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>Ensure that the privilege level 0 AAA authorization method list includes methods beyond <code>none</code> to prevent unintended access escalation:</p><pre>\naaa authorization exec default local group tacacs+\naaa authorization commands 0 default local group tacacs+\n</pre><p>To detect potential exploitation, enable AAA accounting and monitor logs for cases where a user's privilege level in gRPC requests does not match their defined privilege level (e.g., a user with privilege 9 appearing as priv-lvl=0 in gRPC requests).</p>"}]}], "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 - 4.34.8M 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": "<p>The following EOS releases contain the fix for this vulnerability:</p><ul><li>4.33.9M and later releases in the 4.33.x train</li><li>4.34.8M and later releases in the 4.34.x train</li><li>4.35.6M and later releases in the 4.35.x train</li><li>4.36.1F and later releases in the 4.36.x train</li></ul><p>No hotfix is available for this vulnerability.</p>"}]}], "source": {"defects": ["BUG 1602589"], "advisory": "Security Advisory 0163", "discovery": "INTERNAL"}, "references": [{"url": "https://www.arista.com/en/support/advisories-notices/security-advisory/24719-security-advisory-0163", "name": "Arista Networks Security Advisory 0163", "tags": ["vendor-advisory"]}]}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "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"], "product": "EOS", "vendor": "Arista Networks", "versions": [{"lessThan": "4.30.0F", "status": "affected", "version": "4.29.0F", "versionType": "custom"}, {"lessThan": "4.31.0F", "status": "affected", "version": "4.30.0F", "versionType": "custom"}, {"lessThan": "4.32.0F", "status": "affected", "version": "4.31.0F", "versionType": "custom"}, {"lessThanOrEqual": "4.32.11M", "status": "affected", "version": "4.32.0F", "versionType": "custom"}, {"lessThanOrEqual": "4.33.8M", "status": "affected", "version": "4.33.0F", "versionType": "custom"}, {"lessThanOrEqual": "4.34.7M", "status": "affected", "version": "4.34.0F", "versionType": "custom"}, {"lessThanOrEqual": "4.35.5M", "status": "affected", "version": "4.35.0F", "versionType": "custom"}, {"lessThanOrEqual": "4.36.0.1F", "status": "affected", "version": "4.36.0F", "versionType": "custom"}]}], "source": "psirt@arista.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "On affected EOS platforms with AAA-based gRPC authorization enabled for OpenConfig, gRPC requests of an authenticated user to OpenConfig may use the wrong privilege level, resulting in an authorization using the wrong AAA method list. This does not impact non-gRPC OpenConfig requests such as NETCONF."}], "id": "CVE-2026-73461", "lastModified": "2026-09-16T09:17:05.147", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.0, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.3, "impactScore": 6.0, "source": "psirt@arista.com", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 9.4, "baseSeverity": "CRITICAL", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "HIGH", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/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", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "psirt@arista.com", "type": "Secondary"}]}, "published": "2026-09-16T09:17:05.147", "references": [{"source": "psirt@arista.com", "url": "https://www.arista.com/en/support/advisories-notices/security-advisory/24719-security-advisory-0163"}], "sourceIdentifier": "psirt@arista.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-266"}], "source": "psirt@arista.com", "type": "Secondary"}]}

{}

{}