{"id":"CVE-2026-73465","state":"PUBLISHED","title":"On affected platforms running Arista EOS, under certain circumstances plaintext private keys","description":"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.","publishedAt":"2026-09-15T18:36:51.963Z","updatedAt":"2026-09-17T11:57:21.646Z","severity":{"score":6,"label":"Medium","version":"4.0","vector":"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","source":"Arista"},"assigner":"Arista","products":["Arista Networks EOS"],"affected":[{"vendor":"Arista Networks","product":"EOS","defaultStatus":"unaffected","versions":[{"version":"4.36.0","status":"affected","lessThanOrEqual":"4.36.1F","versionType":"custom"},{"version":"4.35.0","status":"affected","lessThanOrEqual":"4.35.4M","versionType":"custom"},{"version":"4.34.0","status":"affected","lessThanOrEqual":"4.34.7M","versionType":"custom"},{"version":"0.0.0","status":"affected","lessThanOrEqual":"4.33.9M","versionType":"custom"},{"version":"0","status":"affected","lessThanOrEqual":"4.32.0","versionType":"custom"},{"version":"0","status":"affected","lessThanOrEqual":"4.31.0","versionType":"custom"}]}],"references":["https://www.arista.com/en/support/advisories-notices/security-advisory/24709-security-advisory-0153"],"weaknesses":["CWE-532"],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/73xxx/CVE-2026-73465.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-73465","state":"PUBLISHED","datePublished":"2026-09-15T18:36:51.963Z","dateUpdated":"2026-09-17T11:57:21.646Z","assignerShortName":"Arista","assignerOrgId":"c8b34d1a-69ae-45c3-88fe-f3b3d44f39b7","dateReserved":"2026-08-12T16:47:18.121Z"},"containers":{"cna":{"title":"On affected platforms running Arista EOS, under certain circumstances plaintext private keys","descriptions":[{"lang":"en","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."}],"affected":[{"vendor":"Arista Networks","product":"EOS","defaultStatus":"unaffected","versions":[{"version":"4.36.0","status":"affected","lessThanOrEqual":"4.36.1F","versionType":"custom"},{"version":"4.35.0","status":"affected","lessThanOrEqual":"4.35.4M","versionType":"custom"},{"version":"4.34.0","status":"affected","lessThanOrEqual":"4.34.7M","versionType":"custom"},{"version":"0.0.0","status":"affected","lessThanOrEqual":"4.33.9M","versionType":"custom"},{"version":"0","status":"affected","lessThanOrEqual":"4.32.0","versionType":"custom"},{"version":"0","status":"affected","lessThanOrEqual":"4.31.0","versionType":"custom"}]}],"references":[{"url":"https://www.arista.com/en/support/advisories-notices/security-advisory/24709-security-advisory-0153","name":"Arista Security Advisory 0153","tags":["vendor-advisory"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"LOCAL","attackComplexity":"HIGH","privilegesRequired":"HIGH","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseSeverity":"MEDIUM","baseScore":6.3,"vectorString":"CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H"}},{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"LOCAL","attackComplexity":"HIGH","attackRequirements":"NONE","privilegesRequired":"HIGH","userInteraction":"PASSIVE","vulnConfidentialityImpact":"HIGH","subConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE","subIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subAvailabilityImpact":"HIGH","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"MEDIUM","baseScore":6,"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-532","lang":"en","description":"CWE-532 Insertion of Sensitive Information into Log File","type":"CWE"}]}],"providerMetadata":{"shortName":"Arista","orgId":"c8b34d1a-69ae-45c3-88fe-f3b3d44f39b7","dateUpdated":"2026-09-15T18:36:51.963Z"},"impacts":[{"capecId":"CAPEC-37","descriptions":[{"lang":"en","value":"CAPEC-37 Retrieve Embedded Sensitive Data"}]}],"configurations":[{"lang":"en","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  ...........","supportingMedia":[{"type":"text/html","base64":false,"value":"<pre><p>In order to be vulnerable to CVE-2026-73465, the following condition must be met:</p><p>MgmtSecuritySslCertKey trace levels 0, 3 and/or 4, on agent ConfigAgent, must be enabled.</p><pre>switch# show trace ConfigAgent | grep MgmtSecuritySslCertKey MgmtSecuritySslCertKey enabled&nbsp; 01.34......\n</pre><div>&nbsp;</div><p>If MgmtSecuritySslCertKey traces levels 0, 3 and 4 are disabled, there is no exposure to this issue and the message will look something like:</p><pre>switch# show trace ConfigAgent | grep MgmtSecuritySslCertKey MgmtSecuritySslCertKey enabled&nbsp; ...........</pre></pre>"}]}],"workarounds":[{"lang":"en","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---\"","supportingMedia":[{"type":"text/html","base64":false,"value":"<pre><p>This vulnerability may lead to exposed private keys on log files. As such, the following messages may appear at /var/log/agents/ConfigAgent-*:</p><pre>2026-05-07 02:42:18.537932 18813 MgmtSecuritySslCertK 3 validateRsaPrivateKey start: -----BEGIN RSA PRIVATE KEY-----\n</pre><div>&nbsp;</div><pre>2026-05-07 02:42:18.537932 18813 MgmtSecuritySslCertK 3 _getPemCount start: -----BEGIN EC PRIVATE KEY-----\n</pre><div>&nbsp;</div><p>These messages can be found with the following grep command, when run from the bash shell:</p><pre>switch# grep \"MgmtSecuritySslCertK\" /var/log/agents/ConfigAgent-* | grep \"PRIVATE KEY---\"</pre></pre>"}]}],"solutions":[{"lang":"en","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.","supportingMedia":[{"type":"text/html","base64":false,"value":"<pre>\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</pre>"}]}],"source":{"advisory":"Security Advisory 0153","discovery":"INTERNAL","defects":["BUG 1595862","BUG 1966285 (DMF)"]},"x_generator":{"engine":"Vulnogram 1.0.5"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-16T03:57:04.010625Z","id":"CVE-2026-73465","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-17T11:57:21.646Z"}}]}}}