{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-2796", "assignerOrgId": "c8b34d1a-69ae-45c3-88fe-f3b3d44f39b7", "state": "PUBLISHED", "assignerShortName": "Arista", "dateReserved": "2025-03-25T16:27:53.397Z", "datePublished": "2025-05-27T22:16:53.489Z", "dateUpdated": "2025-05-28T13:34:30.912Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "platforms": ["EOS"], "product": "EOS", "vendor": "Arista Networks", "versions": [{"lessThanOrEqual": "4.33.2F", "status": "affected", "version": "4.33.0", "versionType": "custom"}]}], "configurations": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>In order to be vulnerable to CVE-2025-2796, the following condition must be met:</p><p><b>anti-replay detection</b>&nbsp;must be configured in IPSec SA Policy:</p><pre>switch(config)# ip security\nswitch(config-ipsec)# sa policy sa1\nswitch(config-ipsec-sa1)# anti-replay detection</pre><br>"}], "value": "In order to be vulnerable to CVE-2025-2796, the following condition must be met:\n\nanti-replay detection\u00a0must be configured in IPSec SA Policy:\n\nswitch(config)# ip security\nswitch(config-ipsec)# sa policy sa1\nswitch(config-ipsec-sa1)# anti-replay detection"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>On affected platforms with hardware IPSec support running Arista EOS with IPsec enabled and anti-replay protection configured, EOS may exhibit unexpected behavior in specific cases. 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{"cveTags": [], "descriptions": [{"lang": "en", "value": "On affected platforms with hardware IPSec support running Arista EOS with IPsec enabled and anti-replay protection configured, EOS may exhibit unexpected behavior in specific cases. Received duplicate encrypted packets, which should be dropped under normal anti-replay protection, will instead be forwarded due to this vulnerability.\n\nNote: this issue does not affect VXLANSec or MACSec encryption functionality."}, {"lang": "es", "value": "En las plataformas afectadas con compatibilidad de hardware IPSec y que ejecutan Arista EOS con IPsec habilitado y protecci\u00f3n antirreproducci\u00f3n configurada, EOS puede presentar un comportamiento inesperado en casos espec\u00edficos. Los paquetes cifrados duplicados recibidos, que deber\u00edan descartarse con la protecci\u00f3n antirreproducci\u00f3n normal, se reenviar\u00e1n debido a esta vulnerabilidad. Nota: Este problema no afecta la funcionalidad de cifrado de VXLANSec ni de MACSec."}], "id": "CVE-2025-2796", "lastModified": "2025-05-28T15:01:30.720", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "psirt@arista.com", "type": "Secondary"}]}, "published": "2025-05-27T23:15:21.283", "references": [{"source": "psirt@arista.com", "url": "https://www.arista.com/en/support/advisories-notices/security-advisory/21413-security-advisory-0119"}], "sourceIdentifier": "psirt@arista.com", "vulnStatus": "Awaiting Analysis"}

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