{
  "document": {
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE"
      }
    },
    "lang": "nl",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this page to enhance access to its information and security advisories. The use of this security advisory is subject to the following terms and conditions:\n\n    NCSC-NL makes every reasonable effort to ensure that the content of this page is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or continuous keeping up-to-date. The information contained in this security advisory is intended solely for the purpose of providing general information to professional users. No rights can be derived from the information provided therein.\n\n    NCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of this security advisory. This includes damage resulting from the inaccuracy of incompleteness of the information contained in the advisory.\n    This security advisory is subject to Dutch law. All disputes related to or arising from the use of this advisory will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings."
      },
      {
        "category": "description",
        "text": "Arista heeft kwetsbaarheden verholpen in de Arista EOS-platform.",
        "title": "Feiten"
      },
      {
        "category": "description",
        "text": "De kwetsbaarheden zijn gerelateerd aan de verwerking van verkeerd gevormde berichten, wat kan leiden tot systeemcrashes en Denial-of-Service-omstandigheden. Aanvallers met hoge privileges kunnen deze kwetsbaarheden misbruiken, wat leidt tot ernstige operationele verstoringen. Daarnaast kan het verzenden van willekeurige bytes naar het CVX-systeem de ControllerOob-agent laten herstarten, wat ook kan resulteren in een Denial-of-Service. Bovendien heeft de Arista EOS-platform een kwetsbaarheid die systemen met IPsec be\u00efnvloedt, waardoor de dataplane stopt met het verwerken van al het IPsec-verkeer. Dit kan een systeemreset vereisen, zonder garantie op herstel van de verkeersverwerking. Voor misbruik heeft de kwaadwillende geen authenticatie nodig. Tot slot kan een geauthenticeerde Redis-sessie volledige roottoegang krijgen tot alle servers binnen de CVX-cluster, wat een ernstige bedreiging vormt voor de beveiliging.",
        "title": "Interpretaties"
      },
      {
        "category": "description",
        "text": "Arista heeft updates uitgebracht om de kwetsbaarheden te verhelpen. Zie bijgevoegde referenties voor meer informatie.",
        "title": "Oplossingen"
      },
      {
        "category": "general",
        "text": "medium",
        "title": "Kans"
      },
      {
        "category": "general",
        "text": "high",
        "title": "Schade"
      },
      {
        "category": "general",
        "text": "Improper Input Validation",
        "title": "CWE-20"
      },
      {
        "category": "general",
        "text": "Improper Privilege Management",
        "title": "CWE-269"
      },
      {
        "category": "general",
        "text": "Improper Validation of Syntactic Correctness of Input",
        "title": "CWE-1286"
      }
    ],
    "publisher": {
      "category": "coordinator",
      "contact_details": "cert@ncsc.nl",
      "name": "Nationaal Cyber Security Centrum",
      "namespace": "https://www.ncsc.nl/"
    },
    "references": [
      {
        "category": "external",
        "summary": "Reference",
        "url": "https://www.arista.com/en/support/advisories-notices/security-advisory/22868-security-advisory-0126"
      },
      {
        "category": "external",
        "summary": "Reference",
        "url": "https://www.arista.com/en/support/advisories-notices/security-advisory/22869-security-advisory-0127"
      }
    ],
    "title": "Kwetsbaarheden verholpen in Arista EOS",
    "tracking": {
      "current_release_date": "2025-11-20T11:48:20.126141Z",
      "generator": {
        "date": "2025-08-04T16:30:00Z",
        "engine": {
          "name": "V.A.",
          "version": "1.3"
        }
      },
      "id": "NCSC-2025-0374",
      "initial_release_date": "2025-11-20T11:48:20.126141Z",
      "revision_history": [
        {
          "date": "2025-11-20T11:48:20.126141Z",
          "number": "1.0.0",
          "summary": "Initiele versie"
        }
      ],
      "status": "final",
      "version": "1.0.0"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-1"
                }
              }
            ],
            "category": "product_name",
            "name": "EOS"
          }
        ],
        "category": "vendor",
        "name": "Arista Networks"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2025-5089",
      "notes": [
        {
          "category": "description",
          "text": "The EOS switch and CVX server are susceptible to crashes and denial of service due to vulnerabilities in handling malformed messages, which can be exploited by high privilege attackers.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2025-5089 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2025/cve-2025-5089.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-1"
          ]
        }
      ],
      "title": "CVE-2025-5089"
    },
    {
      "cve": "CVE-2025-5090",
      "notes": [
        {
          "category": "description",
          "text": "Sending random bytes to CVX can cause the ControllerOob agent to restart, potentially leading to a denial of service if this action is repeated continuously.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2025-5090 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2025/cve-2025-5090.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-1"
          ]
        }
      ],
      "title": "CVE-2025-5090"
    },
    {
      "cve": "CVE-2025-8873",
      "cwe": {
        "id": "CWE-1286",
        "name": "Improper Validation of Syntactic Correctness of Input"
      },
      "notes": [
        {
          "category": "other",
          "text": "Improper Validation of Syntactic Correctness of Input",
          "title": "CWE-1286"
        },
        {
          "category": "description",
          "text": "A vulnerability in Arista EOS with IPsec configured can halt the dataplane\u0027s processing of IPsec traffic, potentially necessitating a reset that may not restore functionality.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2025-8873 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2025/cve-2025-8873.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-1"
          ]
        }
      ],
      "title": "CVE-2025-8873"
    },
    {
      "cve": "CVE-2025-5088",
      "cwe": {
        "id": "CWE-20",
        "name": "Improper Input Validation"
      },
      "notes": [
        {
          "category": "other",
          "text": "Improper Input Validation",
          "title": "CWE-20"
        },
        {
          "category": "other",
          "text": "Improper Privilege Management",
          "title": "CWE-269"
        },
        {
          "category": "description",
          "text": "CVE-2025-5088 enables an authenticated Redis session to achieve full root access across all servers in the CVX cluster, necessitating network access and the Redis password, with communications currently in plaintext.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2025-5088 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2025/cve-2025-5088.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 8.3,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-1"
          ]
        }
      ],
      "title": "CVE-2025-5088"
    }
  ]
}