{
  "crds_version": "0.1",
  "kind": "base",
  "id": "crds:cve-2022-41352",
  "revision": 1,
  "title": "Zimbra Collaboration — cpio Arbitrary File Upload",
  "summary": "Zimbra Collaboration 8.8.15 and 9.0 let an attacker upload arbitrary files through amavis via a cpio loophole, which can give incorrect access to other users' accounts. Ransomware campaigns are known to use this flaw, and public exploit code exists.",
  "source_type": "cve",
  "severity": "critical",
  "cvss": {
    "score": 9.8,
    "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
    "version": "3.1"
  },
  "epss": 0.95478,
  "exploitation": {
    "known_exploited": true,
    "exploit_available": true,
    "attack_complexity": "low",
    "kev_added": "2022-10-20",
    "kev_due": "2022-11-10",
    "prerequisites": "The ability to reach amavis on a Zimbra server that uses cpio rather than pax."
  },
  "remediation": {
    "workaround_available": true
  },
  "mitre_attack": [
    "T1190"
  ],
  "kill_chain": "initial_access",
  "recommended_action": "Install pax on Zimbra servers so amavis prefers it over cpio, and follow Zimbra's security advisories.",
  "confidence": "high",
  "provenance": [
    {
      "fields": [
        "cvss",
        "exploitation.attack_complexity",
        "exploitation.exploit_available",
        "published_at",
        "references"
      ],
      "source": "https://nvd.nist.gov/vuln/detail/CVE-2022-41352",
      "retrieved_at": "2026-11-05T08:18:20.755Z",
      "confidence": "high",
      "extractor": "scrty-crds-pipeline/0.1"
    },
    {
      "fields": [
        "exploitation.known_exploited",
        "exploitation.kev_added",
        "exploitation.kev_due"
      ],
      "source": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "retrieved_at": "2026-11-05T08:18:20.755Z",
      "confidence": "high",
      "extractor": "scrty-crds-pipeline/0.1"
    },
    {
      "fields": [
        "epss"
      ],
      "source": "https://api.first.org/data/v1/epss?cve=CVE-2022-41352",
      "retrieved_at": "2026-11-05T08:18:20.755Z",
      "confidence": "high",
      "extractor": "scrty-crds-pipeline/0.1"
    },
    {
      "fields": [
        "title",
        "subtitle",
        "summary",
        "severity",
        "remediation",
        "mitre_attack",
        "kill_chain",
        "recommended_action",
        "confidence",
        "tags",
        "exploitation.prerequisites"
      ],
      "source": "https://nvd.nist.gov/vuln/detail/CVE-2022-41352",
      "retrieved_at": "2026-11-05T08:18:20.755Z",
      "confidence": "high",
      "extractor": "claude-code"
    }
  ],
  "references": [
    {
      "type": "cve",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-41352",
      "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://forums.zimbra.org/viewtopic.php?t=71153&p=306532"
    },
    {
      "type": "vendor_advisory",
      "url": "https://wiki.zimbra.com/wiki/Security_Center"
    },
    {
      "type": "vendor_advisory",
      "url": "https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories"
    }
  ],
  "published_at": "2022-09-26T02:15:10.733Z",
  "issued_at": "2026-11-05T08:18:20.755Z",
  "tags": [
    "zimbra",
    "file-upload",
    "ransomware"
  ]
}