"}],"value":"In order to be vulnerable to CVE-2026-73465, the following condition must be met:\n\n\n\nMgmtSecuritySslCertKey trace levels 0, 3 and/or 4, on agent ConfigAgent, must be enabled.\n\n\n\nswitch# show trace ConfigAgent | grep MgmtSecuritySslCertKey MgmtSecuritySslCertKey enabled 01.34......\n\n\n \n\n\n\nIf MgmtSecuritySslCertKey traces levels 0, 3 and 4 are disabled, there is no exposure to this issue and the message will look something like:\n\n\n\nswitch# show trace ConfigAgent | grep MgmtSecuritySslCertKey MgmtSecuritySslCertKey enabled ..........."}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"In order to be vulnerable to CVE-2026-73465, the following condition must be met:
MgmtSecuritySslCertKey trace levels 0, 3 and/or 4, on agent ConfigAgent, must be enabled.
switch# show trace ConfigAgent | grep MgmtSecuritySslCertKey MgmtSecuritySslCertKey enabled 01.34......\nIf MgmtSecuritySslCertKey traces levels 0, 3 and 4 are disabled, there is no exposure to this issue and the message will look something like:
switch# show trace ConfigAgent | grep MgmtSecuritySslCertKey MgmtSecuritySslCertKey enabled ...........
On affected platforms running Arista EOS, under certain circumstances plaintext private keys may be written in clear text to log files during operations when specialized non-standard debugging trace levels are explicitly enabled."}],"value":"On affected platforms running Arista EOS, under certain circumstances plaintext private keys may be written in clear text to log files during operations when specialized non-standard debugging trace levels are explicitly enabled.\n\nTo exploit these vulnerabilities, a malicious actor must already possess authenticated local administrative access to the device shell, and specialized non-standard debugging trace levels must be explicitly enabled.\n\nThis issue was discovered internally by Arista, and the company is not aware of any malicious exploitation of this vulnerability in customer networks."}],"impacts":[{"capecId":"CAPEC-37","descriptions":[{"lang":"en","value":"CAPEC-37 Retrieve Embedded Sensitive Data"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":6.3,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H","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":"LOCAL","baseScore":6,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"HIGH","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"HIGH","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","userInteraction":"PASSIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:P/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"HIGH","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":"2026-09-15T18:36:51.963Z","orgId":"c8b34d1a-69ae-45c3-88fe-f3b3d44f39b7","shortName":"Arista"},"references":[{"name":"Arista Security Advisory 0153","tags":["vendor-advisory"],"url":"https://www.arista.com/en/support/advisories-notices/security-advisory/24709-security-advisory-0153"}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"
To exploit these vulnerabilities, a malicious actor must already possess authenticated local administrative access to the device shell, and specialized non-standard debugging trace levels must be explicitly enabled.\n\nThis issue was discovered internally by Arista, and the company is not aware of any malicious exploitation of this vulnerability in customer networks.\n
\nCVE-2026-73465 has been fixed in the following releases:\n* 4.36.2F and later releases in the 4.36.x train.\n* 4.35.5M 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.\n"}],"value":"CVE-2026-73465 has been fixed in the following releases:\n* 4.36.2F and later releases in the 4.36.x train.\n* 4.35.5M 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":"Security Advisory 0153","defects":["BUG 1595862","BUG 1966285 (DMF)"],"discovery":"INTERNAL"},"title":"On affected platforms running Arista EOS, under certain circumstances plaintext private keys","workarounds":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"
"}],"value":"This vulnerability may lead to exposed private keys on log files. As such, the following messages may appear at /var/log/agents/ConfigAgent-*:\n\n\n\n2026-05-07 02:42:18.537932 18813 MgmtSecuritySslCertK 3 validateRsaPrivateKey start: -----BEGIN RSA PRIVATE KEY-----\n\n\n \n\n\n\n2026-05-07 02:42:18.537932 18813 MgmtSecuritySslCertK 3 _getPemCount start: -----BEGIN EC PRIVATE KEY-----\n\n\n \n\n\n\nThese messages can be found with the following grep command, when run from the bash shell:\n\n\n\nswitch# grep \"MgmtSecuritySslCertK\" /var/log/agents/ConfigAgent-* | grep \"PRIVATE KEY---\""}],"x_generator":{"engine":"Vulnogram 1.0.5"}}},"cveMetadata":{"assignerOrgId":"c8b34d1a-69ae-45c3-88fe-f3b3d44f39b7","assignerShortName":"Arista","cveId":"CVE-2026-73465","datePublished":"2026-09-15T18:36:51.963Z","dateReserved":"2026-08-12T16:47:18.121Z","dateUpdated":"2026-09-16T03:57:02.878Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-15 19:17:39","lastModifiedDate":"2026-09-16 04:18:40","problem_types":["CWE-532","CWE-532 CWE-532 Insertion of Sensitive Information into Log File"],"metrics":{"cvssMetricV40":[{"source":"psirt@arista.com","type":"Secondary","cvssData":{"version":"4.0","vectorString":"CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:P/VC:H/VI:N/VA:N/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","baseScore":6,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"HIGH","attackRequirements":"NONE","privilegesRequired":"HIGH","userInteraction":"PASSIVE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","subAvailabilityImpact":"HIGH","exploitMaturity":"NOT_DEFINED","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}}],"cvssMetricV31":[{"source":"psirt@arista.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H","baseScore":6.3,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"HIGH","privilegesRequired":"HIGH","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":0.3,"impactScore":5.9}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-09-15T00:00:00+00:00","id":"CVE-2026-73465","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"73465","Ordinal":"1","Title":"On affected platforms running Arista EOS, under certain circumst","CVE":"CVE-2026-73465","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"73465","Ordinal":"1","NoteData":"On affected platforms running Arista EOS, under certain circumstances plaintext private keys may be written in clear text to log files during operations when specialized non-standard debugging trace levels are explicitly enabled.\n\nTo exploit these vulnerabilities, a malicious actor must already possess authenticated local administrative access to the device shell, and specialized non-standard debugging trace levels must be explicitly enabled.\n\nThis issue was discovered internally by Arista, and the company is not aware of any malicious exploitation of this vulnerability in customer networks.","Type":"Description","Title":"On affected platforms running Arista EOS, under certain circumst"}]}}}This vulnerability may lead to exposed private keys on log files. As such, the following messages may appear at /var/log/agents/ConfigAgent-*:
2026-05-07 02:42:18.537932 18813 MgmtSecuritySslCertK 3 validateRsaPrivateKey start: -----BEGIN RSA PRIVATE KEY-----\n2026-05-07 02:42:18.537932 18813 MgmtSecuritySslCertK 3 _getPemCount start: -----BEGIN EC PRIVATE KEY-----\nThese messages can be found with the following grep command, when run from the bash shell:
switch# grep \"MgmtSecuritySslCertK\" /var/log/agents/ConfigAgent-* | grep \"PRIVATE KEY---\"