CVE-2025-64512

EIP tracks 2 public exploits for CVE-2025-64512. PoCs published by adminlove520, luigigubello.

AI-analyzed exploit summary This repository contains a functional exploit for CVE-2025-64512, leveraging a polyglot file that is both a valid PDF and a malicious pickle.gz to achieve remote code execution via deserialization in pdfminer.six. The PoC generates a payload that bypasses the need for an attacker to know the exact filepath of the malicious pickle file.

Pdfminer.six is a community maintained fork of the original PDFMiner, a tool for extracting information from PDF documents. Prior to version 20251107, pdfminer.six will execute arbitrary code from a malicious pickle file if provided with a malicious PDF file. The `CMapDB._load_data()` function in pdfminer.six uses `pickle.loads()` to deserialize pickle files. These pickle files are supposed to be part of the pdfminer.six distribution stored in the `cmap/` directory, but a malicious PDF can specify an alternative directory and filename as long as the filename ends in `.pickle.gz`. A malicious, zipped pickle file can then contain code which will automatically execute when the PDF is processed. Version 20251107 fixes the issue.