CVE-2026-73442 (GCVE-0-2026-73442)
Vulnerability from cvelistv5
Published
2026-09-16 18:50
Modified
2026-09-17 18:32
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-532 - Insertion of Sensitive Information into Log File
Summary
On affected platforms running Arista EOS with VRRP enabled, the peer device VRRP authentication credentials are logged in cleartext on the switch, allowing an authenticated user with sufficient privileges to view agent trace logs (or a system receiving forwarded log output) to obtain the peer device VRRP authentication credentials without having access to the network segment on which VRRP is running.
References
| URL | Tags | |
|---|---|---|
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Arista Networks | EOS |
Version: 4.36.0 < Version: 4.35.0 < Version: 4.34.0 < Version: 4.33.0 < |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-73442",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-17T18:32:32.827325Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-17T18:32:55.263Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"platforms": [
"710 Series",
"720D Series",
"720XP/722XPM Series",
"750X Series",
"7010TX Series",
"7020R/R4 Series",
"7130 Series running 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"
],
"product": "EOS",
"vendor": "Arista Networks",
"versions": [
{
"changes": [
{
"at": "4.36.2F",
"status": "unaffected"
}
],
"lessThanOrEqual": "4.36.1F",
"status": "affected",
"version": "4.36.0",
"versionType": "custom"
},
{
"changes": [
{
"at": "4.35.6M",
"status": "unaffected"
}
],
"lessThanOrEqual": "4.35.5M",
"status": "affected",
"version": "4.35.0",
"versionType": "custom"
},
{
"changes": [
{
"at": "4.34.8M",
"status": "unaffected"
}
],
"lessThanOrEqual": "4.34.7M",
"status": "affected",
"version": "4.34.0",
"versionType": "custom"
},
{
"changes": [
{
"at": "4.33.10M",
"status": "unaffected"
}
],
"lessThanOrEqual": "4.33.9M",
"status": "affected",
"version": "4.33.0",
"versionType": "custom"
}
]
}
],
"configurations": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eIn order to be vulnerable to CVE-2026-73442, VRRP must be configured with either version 2 or version 3:\u003c/p\u003e\u003cpre\u003eswitch\u0026gt;show running-config section vrrp\ninterface Ethernet1\n vrrp 1 ipv4 \u0026lt;ipAddr\u0026gt;\u003c/pre\u003e\u003cp\u003eIf VRRP is not configured, there is no exposure to CVE-2026-73442.\u003c/p\u003e"
}
],
"value": "In order to be vulnerable to CVE-2026-73442, VRRP must be configured with either version 2 or version 3:\n\n\n\nswitch\u003eshow running-config section vrrp\ninterface Ethernet1\n vrrp 1 ipv4 \u003cipAddr\u003e\n\n\n\nIf VRRP is not configured, there is no exposure to CVE-2026-73442."
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "This issue was discovered internally by Arista."
}
],
"datePublic": "2026-09-09T18:48:00.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eOn affected platforms running Arista EOS with VRRP enabled, the peer device VRRP authentication credentials are logged in cleartext on the switch, allowing an authenticated user with sufficient privileges to view agent trace logs (or a system receiving forwarded log output) to obtain the peer device VRRP authentication credentials without having access to the network segment on which VRRP is running.\u003c/p\u003e"
}
],
"value": "On affected platforms running Arista EOS with VRRP enabled, the peer device VRRP authentication credentials are logged in cleartext on the switch, allowing an authenticated user with sufficient privileges to view agent trace logs (or a system receiving forwarded log output) to obtain the peer device VRRP authentication credentials without having access to the network segment on which VRRP is running."
}
],
"impacts": [
{
"capecId": "CAPEC-118",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-118 Information Disclosure"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "NONE",
"baseScore": 3,
"baseSeverity": "LOW",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
},
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "HIGH",
"attackRequirements": "NONE",
"attackVector": "ADJACENT",
"baseScore": 2.1,
"baseSeverity": "LOW",
"exploitMaturity": "NOT_DEFINED",
"privilegesRequired": "LOW",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "LOW",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:A/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "LOW",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-532",
"description": "CWE-532 Insertion of Sensitive Information into Log File",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-16T18:50:06.448Z",
"orgId": "c8b34d1a-69ae-45c3-88fe-f3b3d44f39b7",
"shortName": "Arista"
},
"references": [
{
"tags": [
"vendor-advisory"
],
"url": "https://www.arista.com/en/support/advisories-notices/security-advisory/24713-security-advisory-0157"
}
],
"solutions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eThe recommended resolution is to upgrade to a remediated software version at your earliest convenience. CVE-2026-73442 has been fixed in the following releases:\u003c/p\u003e\u003cul\u003e\u003cli\u003e4.36.2F and later releases in the 4.36.x train\u003c/li\u003e\u003cli\u003e4.35.6M and later releases in the 4.35.x train\u003c/li\u003e\u003cli\u003e4.34.8M and later releases in the 4.34.x train\u003c/li\u003e\u003cli\u003e4.33.10M and later releases in the 4.33.x train\u003c/li\u003e\u003c/ul\u003e"
}
],
"value": "The recommended resolution is to upgrade to a remediated software version at your earliest convenience. CVE-2026-73442 has been fixed in the following releases:\n\n * 4.36.2F and later releases in the 4.36.x train\n * 4.35.6M and later releases in the 4.35.x train\n * 4.34.8M and later releases in the 4.34.x train\n * 4.33.10M and later releases in the 4.33.x train"
}
],
"source": {
"advisory": "157",
"defect": [
"1857627"
],
"discovery": "INTERNAL"
},
"title": "On affected platforms running Arista EOS with VRRP enabled, the peer device VRRP authentication credentials are logged in cleartext on the switch, allowing an authenticated user with sufficient privileges to view agent trace logs (or a system receiving for",
"workarounds": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eIf the VRRP feature is not operationally required, disabling it removes the exposure. Otherwise, there is no mitigation or workaround available. Please note that disabling VRRP can lead to network outages if the primary router fails.\u003c/p\u003e"
}
],
"value": "If the VRRP feature is not operationally required, disabling it removes the exposure. Otherwise, there is no mitigation or workaround available. Please note that disabling VRRP can lead to network outages if the primary router fails."
}
],
"x_generator": {
"engine": "Vulnogram 1.0.5"
}
}
},
"cveMetadata": {
"assignerOrgId": "c8b34d1a-69ae-45c3-88fe-f3b3d44f39b7",
"assignerShortName": "Arista",
"cveId": "CVE-2026-73442",
"datePublished": "2026-09-16T18:50:06.448Z",
"dateReserved": "2026-08-12T16:39:35.977Z",
"dateUpdated": "2026-09-17T18:32:55.263Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"vulnrichment": {
"containers": "{\"cna\": {\"title\": \"On affected platforms running Arista EOS with VRRP enabled, the peer device VRRP authentication credentials are logged in cleartext on the switch, allowing an authenticated user with sufficient privileges to view agent trace logs (or a system receiving for\", \"source\": {\"defect\": [\"1857627\"], \"advisory\": \"157\", \"discovery\": \"INTERNAL\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"This issue was discovered internally by Arista.\"}], \"impacts\": [{\"capecId\": \"CAPEC-118\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"CAPEC-118 Information Disclosure\"}]}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"CHANGED\", \"version\": \"3.1\", \"baseScore\": 3, \"attackVector\": \"ADJACENT_NETWORK\", \"baseSeverity\": \"LOW\", \"vectorString\": \"CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"HIGH\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"LOW\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}, {\"format\": \"CVSS\", \"cvssV4_0\": {\"Safety\": \"NOT_DEFINED\", \"version\": \"4.0\", \"Recovery\": \"NOT_DEFINED\", \"baseScore\": 2.1, \"Automatable\": \"NOT_DEFINED\", \"attackVector\": \"ADJACENT\", \"baseSeverity\": \"LOW\", \"valueDensity\": \"NOT_DEFINED\", \"vectorString\": \"CVSS:4.0/AV:A/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N\", \"exploitMaturity\": \"NOT_DEFINED\", \"providerUrgency\": \"NOT_DEFINED\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"HIGH\", \"attackRequirements\": \"NONE\", \"privilegesRequired\": \"LOW\", \"subIntegrityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"NONE\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"NONE\", \"subConfidentialityImpact\": \"LOW\", \"vulnConfidentialityImpact\": \"LOW\", \"vulnerabilityResponseEffort\": \"NOT_DEFINED\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"Arista Networks\", \"product\": \"EOS\", \"versions\": [{\"status\": \"affected\", \"changes\": [{\"at\": \"4.36.2F\", \"status\": \"unaffected\"}], \"version\": \"4.36.0\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"4.36.1F\"}, {\"status\": \"affected\", \"changes\": [{\"at\": \"4.35.6M\", \"status\": \"unaffected\"}], \"version\": \"4.35.0\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"4.35.5M\"}, {\"status\": \"affected\", \"changes\": [{\"at\": \"4.34.8M\", \"status\": \"unaffected\"}], \"version\": \"4.34.0\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"4.34.7M\"}, {\"status\": \"affected\", \"changes\": [{\"at\": \"4.33.10M\", \"status\": \"unaffected\"}], \"version\": \"4.33.0\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"4.33.9M\"}], \"platforms\": [\"710 Series\", \"720D Series\", \"720XP/722XPM Series\", \"750X Series\", \"7010TX Series\", \"7020R/R4 Series\", \"7130 Series running 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\"], \"defaultStatus\": \"unaffected\"}], \"solutions\": [{\"lang\": \"en\", \"value\": \"The recommended resolution is to upgrade to a remediated software version at your earliest convenience. CVE-2026-73442 has been fixed in the following releases:\\n\\n * 4.36.2F and later releases in the 4.36.x train\\n * 4.35.6M and later releases in the 4.35.x train\\n * 4.34.8M and later releases in the 4.34.x train\\n * 4.33.10M and later releases in the 4.33.x train\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eThe recommended resolution is to upgrade to a remediated software version at your earliest convenience. CVE-2026-73442 has been fixed in the following releases:\u003c/p\u003e\u003cul\u003e\u003cli\u003e4.36.2F and later releases in the 4.36.x train\u003c/li\u003e\u003cli\u003e4.35.6M and later releases in the 4.35.x train\u003c/li\u003e\u003cli\u003e4.34.8M and later releases in the 4.34.x train\u003c/li\u003e\u003cli\u003e4.33.10M and later releases in the 4.33.x train\u003c/li\u003e\u003c/ul\u003e\", \"base64\": false}]}], \"datePublic\": \"2026-09-09T18:48:00.000Z\", \"references\": [{\"url\": \"https://www.arista.com/en/support/advisories-notices/security-advisory/24713-security-advisory-0157\", \"tags\": [\"vendor-advisory\"]}], \"workarounds\": [{\"lang\": \"en\", \"value\": \"If the VRRP feature is not operationally required, disabling it removes the exposure. Otherwise, there is no mitigation or workaround available. Please note that disabling VRRP can lead to network outages if the primary router fails.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eIf the VRRP feature is not operationally required, disabling it removes the exposure. Otherwise, there is no mitigation or workaround available. Please note that disabling VRRP can lead to network outages if the primary router fails.\u003c/p\u003e\", \"base64\": false}]}], \"x_generator\": {\"engine\": \"Vulnogram 1.0.5\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"On affected platforms running Arista EOS with VRRP enabled, the peer device VRRP authentication credentials are logged in cleartext on the switch, allowing an authenticated user with sufficient privileges to view agent trace logs (or a system receiving forwarded log output) to obtain the peer device VRRP authentication credentials without having access to the network segment on which VRRP is running.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eOn affected platforms running Arista EOS with VRRP enabled, the peer device VRRP authentication credentials are logged in cleartext on the switch, allowing an authenticated user with sufficient privileges to view agent trace logs (or a system receiving forwarded log output) to obtain the peer device VRRP authentication credentials without having access to the network segment on which VRRP is running.\u003c/p\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-532\", \"description\": \"CWE-532 Insertion of Sensitive Information into Log File\"}]}], \"configurations\": [{\"lang\": \"en\", \"value\": \"In order to be vulnerable to CVE-2026-73442, VRRP must be configured with either version 2 or version 3:\\n\\n\\n\\nswitch\u003eshow running-config section vrrp\\ninterface Ethernet1\\n vrrp 1 ipv4 \u003cipAddr\u003e\\n\\n\\n\\nIf VRRP is not configured, there is no exposure to CVE-2026-73442.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eIn order to be vulnerable to CVE-2026-73442, VRRP must be configured with either version 2 or version 3:\u003c/p\u003e\u003cpre\u003eswitch\u0026gt;show running-config section vrrp\\ninterface Ethernet1\\n vrrp 1 ipv4 \u0026lt;ipAddr\u0026gt;\u003c/pre\u003e\u003cp\u003eIf VRRP is not configured, there is no exposure to CVE-2026-73442.\u003c/p\u003e\", \"base64\": false}]}], \"providerMetadata\": {\"orgId\": \"c8b34d1a-69ae-45c3-88fe-f3b3d44f39b7\", \"shortName\": \"Arista\", \"dateUpdated\": \"2026-09-16T18:50:06.448Z\"}}, \"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-73442\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-09-17T18:32:32.827325Z\"}}}], \"providerMetadata\": {\"shortName\": \"CISA-ADP\", \"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"dateUpdated\": \"2026-09-17T18:32:37.376Z\"}}]}",
"cveMetadata": "{\"cveId\": \"CVE-2026-73442\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-09-16T18:50:06.448Z\", \"dateReserved\": \"2026-08-12T16:39:35.977Z\", \"assignerOrgId\": \"c8b34d1a-69ae-45c3-88fe-f3b3d44f39b7\", \"datePublished\": \"2026-09-16T18:50:06.448Z\", \"assignerShortName\": \"Arista\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
Loading…
Loading…