{
  "crds_version": "0.1",
  "kind": "base",
  "id": "crds:cve-2025-59689",
  "revision": 1,
  "title": "Libraesva Email Security Gateway — injection via an attachment",
  "summary": "The Libraesva email security gateway (ESG) 4.5 through 5.5.6 runs commands out of a compressed attachment it is asked to inspect, so a message alone is enough to get code running on the gateway.",
  "source_type": "cve",
  "severity": "high",
  "cvss": {
    "score": 6.1,
    "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
    "version": "3.1"
  },
  "epss": 0.01864,
  "exploitation": {
    "known_exploited": true,
    "exploit_available": false,
    "attack_complexity": "low",
    "kev_added": "2025-09-29",
    "prerequisites": "The ability to send a message with a crafted compressed attachment to the gateway."
  },
  "remediation": {
    "patch_available": true,
    "fixed_in": [
      "Libraesva ESG 5.0.31",
      "Libraesva ESG 5.1.20",
      "Libraesva ESG 5.2.31",
      "Libraesva ESG 5.4.8",
      "Libraesva ESG 5.5.7"
    ]
  },
  "mitre_attack": [
    "T1059"
  ],
  "kill_chain": "execution",
  "recommended_action": "Upgrade to 5.0.31, 5.1.20, 5.2.31, 5.4.8 or 5.5.7 now; the gateway sees all inbound mail, so review it for dropped files before trusting it again.",
  "confidence": "high",
  "provenance": [
    {
      "fields": [
        "cvss",
        "exploitation.attack_complexity",
        "exploitation.exploit_available",
        "references",
        "published_at"
      ],
      "source": "https://nvd.nist.gov/vuln/detail/CVE-2025-59689",
      "retrieved_at": "2026-09-24T08:51:39.744Z",
      "confidence": "high",
      "extractor": "scrty-crds-pipeline/0.1"
    },
    {
      "fields": [
        "exploitation.known_exploited",
        "exploitation.kev_added"
      ],
      "source": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "retrieved_at": "2026-09-24T08:51:39.744Z",
      "confidence": "high",
      "extractor": "scrty-crds-pipeline/0.1"
    },
    {
      "fields": [
        "epss"
      ],
      "source": "https://api.first.org/data/v1/epss?cve=CVE-2025-59689",
      "retrieved_at": "2026-09-24T08:51:39.744Z",
      "confidence": "high",
      "extractor": "scrty-crds-pipeline/0.1"
    },
    {
      "fields": [
        "title",
        "summary",
        "severity",
        "remediation",
        "mitre_attack",
        "kill_chain",
        "recommended_action",
        "confidence",
        "tags",
        "exploitation.prerequisites"
      ],
      "source": "https://nvd.nist.gov/vuln/detail/CVE-2025-59689",
      "retrieved_at": "2026-09-24T08:51:39.744Z",
      "confidence": "high",
      "extractor": "claude-code"
    }
  ],
  "references": [
    {
      "type": "cve",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-59689",
      "label": "NVD record"
    },
    {
      "type": "cisa",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "label": "CISA Known Exploited Vulnerabilities catalog"
    },
    {
      "type": "vendor_advisory",
      "url": "https://docs.libraesva.com/knowledgebase/security-advisory-command-injection-vulnerability-cve-2025-59689/"
    },
    {
      "type": "vendor_advisory",
      "url": "https://www.libraesva.com/security-blog/"
    }
  ],
  "published_at": "2025-09-19T20:15:40.340Z",
  "issued_at": "2026-09-24T08:51:39.744Z",
  "tags": [
    "libraesva",
    "email-gateway",
    "command-injection",
    "kev"
  ]
}