cve-2026-34909

{
  "cvss": 0.0,
  "datePublished": "2026-06-23",
  "dateUpdated": "2026-06-23",
  "description": "Ubiquiti UniFi OS contains a path traversal vulnerability which could allow a malicious actor with access to the network to access files on the underlying system that could be manipulated to access an underlying account.",
  "dueDate": "2026-06-26",
  "id": "CVE-2026-34909",
  "kev_catalogs": [
    "cisa"
  ],
  "knownRansomwareCampaignUse": "Unknown",
  "notes": "https://community.ui.com/releases/Security-Advisory-Bulletin-064-064/84811c09-4cf4-42ab-bd61-cc994445963b ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-34909",
  "product": "UniFi OS",
  "requiredAction": "Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.",
  "severity": "HIGH",
  "source": "cisa_known_exploited",
  "title": "Ubiquiti UniFi OS Path Traversal Vulnerability",
  "vendor": "Ubiquiti"
}