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CVE-2026-9490 is a local denial-of-service vulnerability in Acer Care Center. The ACCSvc service creates a Windows Named Pipe with a weak security descriptor, allowing an authenticated local user to connect to the pipe when they should not have sufficient restriction. By sending a specially crafted message of type 0x03 to the pipe, the attacker can trigger a crash in the ACCSvc service, which terminates with exit code 1067 (ERROR_PROCESS_ABORTED). Based on the available information, the issue is caused by overly permissive access control on the Named Pipe rather than memory corruption or code execution.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
Small repository containing a README and a single Python proof-of-concept exploit. The exploit targets CVE-2026-9490 in Acer Care Center's ACCSvc.exe on Windows. The core issue is a weakly protected local named pipe, \\.\pipe\treadstone_service_LightMode, exposed by a SYSTEM service and accessible to Authenticated Users with read/write/execute-style permissions. The included script exploit_dos.py uses pywin32 (win32file/win32pipe imports) to open the pipe and write a fixed 11-byte binary payload that triggers a denial of service, crashing the ACCSvc service. The repository is not part of a known exploit framework. The README provides reverse-engineering notes, service configuration details, SDDL analysis, command dispatch observations, and evidence of successful service termination. It also documents additional command IDs associated with process-launch behavior via CreateProcessAsUserW, indicating possible local privilege escalation potential, but no LPE exploit code is included. Overall, this is a focused local Windows DoS PoC with supporting technical analysis rather than a multi-stage or remote exploit.
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