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Injection."}],"metrics":[{"cvssV3_1":{"baseScore":10,"baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-20","description":"CWE-20 Improper Input Validation","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-05-22T00:43:49.096Z","orgId":"36234546-b8fa-4601-9d6f-f4e334aa8ea1","shortName":"hackerone"},"references":[{"url":"https://community.ui.com/releases/Security-Advisory-Bulletin-064-064/84811c09-4cf4-42ab-bd61-cc994445963b"}]}},"cveMetadata":{"assignerOrgId":"36234546-b8fa-4601-9d6f-f4e334aa8ea1","assignerShortName":"hackerone","cveId":"CVE-2026-34910","datePublished":"2026-05-22T00:43:49.096Z","dateReserved":"2026-03-31T15:00:06.521Z","dateUpdated":"2026-06-24T03:55:52.177Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"cna_checked":1794133200,"cve":"CVE-2026-34910","description":"A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS devices to execute a Command Injection.","epss":{"date":"2026-11-12","epss":0.90032,"percentile":0.99798},"epss_checked":1794522003,"first_seen":1793665375,"kev":{"cveID":"CVE-2026-34910","cwes":["CWE-20"],"dateAdded":"2026-06-23","dueDate":"2026-06-26","forensicTriage":"No","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-2026-34910","product":"UniFi OS","requiredAction":"Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA\u2019s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA\u2019s \u201cForensics Triage Requirements\u201d (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.","shortDescription":"Ubiquiti UniFi OS contains an improper input validation vulnerability which could allow a malicious actor with access to the network to conduct command injection.","vendorProject":"Ubiquiti","vulnerabilityName":"Ubiquiti UniFi OS Improper Input Validation Vulnerability"},"kev_checked":1794522003,"products":"Ubiquiti Inc UniFi OS Server, Ubiquiti Inc UDM, Ubiquiti Inc UDM-Pro, Ubiquiti Inc UDM-SE, Ubiquiti Inc UDM-Pro-Max, Ubiquiti Inc UDM-Beast, Ubiquiti Inc EFG, Ubiquiti Inc UDW, Ubiquiti Inc UDR, Ubiquiti Inc UDR7, Ubiquiti Inc UDR-5G, Ubiquiti Inc Express 7, Ubiquiti Inc UNVR, Ubiquiti Inc UNVR-Pro, Ubiquiti Inc UNVR-Instant, Ubiquiti Inc UNVR-G2, Ubiquiti Inc UNVR-G2-Pro, Ubiquiti Inc ENVR, Ubiquiti Inc ENVR-Core, Ubiquiti Inc UNAS-2, Ubiquiti Inc UNAS-4, Ubiquiti Inc UNAS-Pro, Ubiquiti Inc UNAS-Pro-4, Ubiquiti Inc UNAS-Pro-8, Ubiquiti Inc UCKP, Ubiquiti Inc UCK, Ubiquiti Inc UCK-Enterprise, Ubiquiti Inc UCG-Ultra, Ubiquiti Inc UCG-Max, Ubiquiti Inc UCG-Fiber, Ubiquiti Inc UCG-Industrial","references":["https://community.ui.com/releases/Security-Advisory-Bulletin-064-064/84811c09-4cf4-42ab-bd61-cc994445963b","https://www.pwndefend.com/2026/06/09/cve-2026-34910-exploitation-itw-building-a-botnet-mirai/","https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-34910"],"score":{"baseScore":10,"baseSeverity":"CRITICAL","provider":"hackerone","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"solutions":"","state":"PUBLISHED","title":"Ubiquiti UniFi OS Improper Input Validation Vulnerability","updated_at":1794500401,"workarounds":""},"sources":[]}