CVE-2026-0705

Description

Local privilege escalation due to insecure folder permissions. The following products are affected: Acronis Cloud Manager (Windows) before build 6.4.25342.354.

CVSS Details

CVSS Score

6.7

Severity

MEDIUM

CVSS Vector

CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

Configurations (Affected Products)

No configuration data available.

Acronis Cloud Manager (Windows) < build 6.4.25342.354

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

#!/usr/bin/env python3
"""
CVE-2026-0705 PoC - Acronis Cloud Manager Permission Check
This script checks for insecure folder permissions on Acronis Cloud Manager installation.
Note: Requires administrator privileges to run.
"""

import os
import sys
import subprocess
import re

def check_acl(path):
    """Check folder permissions using icacls command"""
    try:
        result = subprocess.run(
            ['icacls', path],
            capture_output=True,
            text=True,
            timeout=30
        )
        return result.stdout
    except Exception as e:
        return f"Error checking ACL: {e}"

def main():
    acronis_paths = [
        r"C:\Program Files\Acronis",
        r"C:\Program Files (x86)\Acronis",
        r"C:\ProgramData\Acronis"
    ]
    
    print("=" * 60)
    print("CVE-2026-0705 - Acronis Cloud Manager Permission Check")
    print("=" * 60)
    
    vulnerable = False
    
    for path in acronis_paths:
        if os.path.exists(path):
            print(f"\n[+] Checking: {path}")
            acl_output = check_acl(path)
            
            # Check if Users group has write permissions
            if re.search(r'Users.*:(.*)W', acl_output) or re.search(r'BUILTIN\\Users.*:(.*)W', acl_output):
                print(f"[VULNERABLE] Insecure permissions detected!")
                print(f"Users group has WRITE permissions on {path}")
                vulnerable = True
            else:
                print(f"[OK] Permissions appear secure")
                
            print(f"\nACL Output:\n{acl_output}")
    
    if vulnerable:
        print("\n[!] System is VULNERABLE to CVE-2026-0705")
        print("[!] Recommendation: Update Acronis Cloud Manager to build >= 6.4.25342.354")
        return 1
    else:
        print("\n[+] System does not appear to be vulnerable")
        return 0

if __name__ == "__main__":
    sys.exit(main())

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-0705
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-0705
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-0705/
[4] VulDB https://vuldb.com/cve/CVE-2026-0705
[5] https://security-advisory.acronis.com/advisories/SEC-7316

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-0705", "sourceIdentifier": "[email protected]", "published": "2026-01-27T17:16:10.173", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Local privilege escalation due to insecure folder permissions. The following products are affected: Acronis Cloud Manager (Windows) before build 6.4.25342.354."}, {"lang": "es", "value": "Escalada de privilegios local debido a permisos de carpeta inseguros. Los siguientes productos están afectados: Acronis Cloud Manager (Windows) anterior a la compilación 6.4.25342.354."}], "metrics": {"cvssMetricV30": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.0", "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H", "baseScore": 6.7, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "HIGH", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 0.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-276"}]}], "references": [{"url": "https://security-advisory.acronis.com/advisories/SEC-7316", "source": "[email protected]"}]}}