CVE-2026-34910_CVE-2026-34910

10 / 10

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

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.

AI Analysis

Improper Input Validation vulnerability allowing Command Injection in UniFi OS devices

Basic Information

ID CVE-2026-34910

Source hackerone

Published May 22, 2026 at 00:43

Affected Product

Vendor Ubiquiti Inc

Product UniFi OS Server

Affected Versions Ubiquiti Inc UniFi OS Server 0
Ubiquiti Inc UDM 0
Ubiquiti Inc UDM-Pro 0
Ubiquiti Inc UDM-SE 0
Ubiquiti Inc UDM-Pro-Max 0
Ubiquiti Inc UDM-Beast 0
Ubiquiti Inc EFG 0
Ubiquiti Inc UDW 0
Ubiquiti Inc UDR 0
Ubiquiti Inc UDR7 0
Ubiquiti Inc UDR-5G 0
Ubiquiti Inc Express 7 0
Ubiquiti Inc UNVR 0
Ubiquiti Inc UNVR-Pro 0
Ubiquiti Inc UNVR-Instant 0
Ubiquiti Inc UNVR-G2 0
Ubiquiti Inc UNVR-G2-Pro 0
Ubiquiti Inc ENVR 0
Ubiquiti Inc ENVR-Core 0
Ubiquiti Inc UNAS-2 0
Ubiquiti Inc UNAS-4 0
Ubiquiti Inc UNAS-Pro 0
Ubiquiti Inc UNAS-Pro-4 0
Ubiquiti Inc UNAS-Pro-8 0
Ubiquiti Inc UCKP 0
Ubiquiti Inc UCK 0
Ubiquiti Inc UCK-Enterprise 0
Ubiquiti Inc UCG-Ultra 0
Ubiquiti Inc UCG-Max 0
Ubiquiti Inc UCG-Fiber 0
Ubiquiti Inc UCG-Industrial 0

CWE Classification

CWE-20

AI Assessment

AI Score 10 / 10

AI Severity Critical

Vendor Ubiquiti Inc

Product UniFi OS

References

community.ui.com /releases/Security-Advisory-Bulletin-064-064/84811c09-4cf4-42ab-bd61-cc994445963b

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    "lastseen": "",
    "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.",
    "published": "2026-05-22T00:43:49.096Z",
    "modified": "2026-05-22T00:43:49.096Z",
    "type": "cve",
    "title": "CVE-2026-34910",
    "source": "hackerone",
    "references": "https://community.ui.com/releases/Security-Advisory-Bulletin-064-064/84811c09-4cf4-42ab-bd61-cc994445963b",
    "id": "CVE-2026-34910",
    "bulletinFamily": "",
    "cwe": [
        "CWE-20"
    ],
    "cvelist": null,
    "sourceData": "Ubiquiti Inc UniFi OS Server 0\nUbiquiti Inc UDM 0\nUbiquiti Inc UDM-Pro 0\nUbiquiti Inc UDM-SE 0\nUbiquiti Inc UDM-Pro-Max 0\nUbiquiti Inc UDM-Beast 0\nUbiquiti Inc EFG 0\nUbiquiti Inc UDW 0\nUbiquiti Inc UDR 0\nUbiquiti Inc UDR7 0\nUbiquiti Inc UDR-5G 0\nUbiquiti Inc Express 7 0\nUbiquiti Inc UNVR 0\nUbiquiti Inc UNVR-Pro 0\nUbiquiti Inc UNVR-Instant 0\nUbiquiti Inc UNVR-G2 0\nUbiquiti Inc UNVR-G2-Pro 0\nUbiquiti Inc ENVR 0\nUbiquiti Inc ENVR-Core 0\nUbiquiti Inc UNAS-2 0\nUbiquiti Inc UNAS-4 0\nUbiquiti Inc UNAS-Pro 0\nUbiquiti Inc UNAS-Pro-4 0\nUbiquiti Inc UNAS-Pro-8 0\nUbiquiti Inc UCKP 0\nUbiquiti Inc UCK 0\nUbiquiti Inc UCK-Enterprise 0\nUbiquiti Inc UCG-Ultra 0\nUbiquiti Inc UCG-Max 0\nUbiquiti Inc UCG-Fiber 0\nUbiquiti Inc UCG-Industrial 0",
    "sourceHref": "",
    "cvss": {
        "score": 10,
        "severity": "CRITICAL",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
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            "privilegesRequired": "",
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            "confidentialityImpact": "",
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            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "UniFi OS Server",
    "version": "0",
    "vendor": "Ubiquiti Inc",
    "ai_description": "Improper Input Validation vulnerability allowing Command Injection in UniFi OS devices",
    "ai_severity": "Critical",
    "ai_vendor": "Ubiquiti Inc",
    "ai_product": "UniFi OS",
    "ai_version": "0",
    "ai_score": 10
}