{
  "id": "CVE-2026-34926",
  "url": "https://spydr.io/cve/CVE-2026-34926",
  "published": "2026-05-21T14:16:45.213Z",
  "modified": "2026-07-23T16:10:00.137Z",
  "score": 6.7,
  "severity": "medium",
  "cvss_version": "3.1",
  "vector": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:L",
  "score_source": "trendmicro.com",
  "epss": 0.00538,
  "epss_percentile": 0.43306,
  "exploited": true,
  "kev": {
    "added": "2026-05-21",
    "due": "2026-06-04",
    "action": "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.",
    "ransomware": "Unknown",
    "name": "Trend Micro Apex One (On-Premise) Directory Traversal Vulnerability",
    "notes": "https://success.trendmicro.com/en-US/solution/KA-0023430 ; https://nvd.nist.gov/vuln/detail/CVE-2026-34926"
  },
  "ssvc_exploitation": "active",
  "vendors": [
    "Trend Micro, Inc."
  ],
  "products": [
    "Trend Micro, Inc. TrendAI Apex One",
    "Trend Micro, Inc. TrendAI Apex One as a Service"
  ],
  "cwes": [
    "CWE-23"
  ],
  "description": "A directory traversal vulnerability in the Apex One (on-premise) server could allow a pre-authenticated local attacker to modify a key table on the server to inject malicious code to deploy to agents on affected installations. This vulnerability is only exploitable on the on-premise version of Apex One and a potential attacker must have access to the Apex One Server and already obtained administrative credentials to the server via some other method to exploit this vulnerability.",
  "status": "Analyzed",
  "score_type": "Secondary",
  "scores": {
    "cvss_v40": null,
    "cvss_v31": 6.7,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "https://jvn.jp/en/vu/JVNVU90583059/",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://success.trendmicro.com/en-US/solution/KA-0023430",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://success.trendmicro.com/ja-JP/solution/KA-0022974",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://www.jpcert.or.jp/english/at/2026/at260014.html",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-34926",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ]
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34926",
  "covered_in": [],
  "attribution": [
    {
      "source": "NVD",
      "url": "https://nvd.nist.gov",
      "notice": "This product uses data from the NVD API but is not endorsed or certified by the NVD."
    },
    {
      "source": "CISA KEV",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "notice": "Known exploited vulnerabilities from the CISA KEV catalog."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss",
      "notice": "Exploit prediction scores from FIRST EPSS."
    }
  ]
}