CVE-2025-34127 is a stack-based buffer overflow in Achat v0.150 in its default configuration. The flaw is reachable remotely by sending a specially crafted message to the application's UDP service on port 9256. Due to insufficient bounds checking on user-supplied input, the vulnerable code copies attacker-controlled data onto the stack without enforcing proper length validation, allowing overwrite of the structured exception handler (SEH). This memory corruption condition can be leveraged to achieve remote code execution.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a single Metasploit module (modules/exploits/windows/misc/achat_bof.rb) that exploits a Unicode SEH buffer overflow vulnerability in Achat v0.150 running on Windows XP SP3 or Windows 7. The exploit targets the Achat service listening on UDP port 9256. By sending a specially crafted UDP packet, the module overwrites the SEH handler, allowing for arbitrary code execution. The exploit is weaponized, supporting customizable Metasploit payloads (such as reverse shells) using alphanumeric Unicode encoding. The module is well-documented, includes references to CVE-2025-34127, and is designed for reliable exploitation, though timing issues may affect success due to multi-threaded stack overflows in the target application. The only fingerprintable endpoint is the UDP service on port 9256. The code is written in Ruby and follows standard Metasploit module structure.
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Cross-references every affected SKU, including bundled OEM variants.
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