The flaw typically involves the weaponization of symbolic links (symlinks) . When an archive is extracted, a maliciously crafted symlink can trick the system into placing files in sensitive directories (like system folders), potentially leading to arbitrary code execution.
Right-click on waterfall.7z.001 and select "Extract" using 7-Zip. The software automatically detects and joins the remaining volumes ( .002 , .003 , etc.) to reconstruct the original file. Risk Warning
When you encounter a file ending in .002 , it is a "split volume." You cannot extract or open it individually. To access the data: waterfall.7z.002
"Waterfall.7z.002" refers to the second part of a multi-volume 7-Zip archive named "Waterfall." This specific file is likely associated with recent security research or a Capture The Flag (CTF) challenge exploring path traversal vulnerabilities in the 7-Zip compression utility. Security Context: CVE-2025-11001 & 11002
Recent cybersecurity reports from Medium highlight critical vulnerabilities in 7-Zip (CVE-2025-11001 and CVE-2025-11002) that involve "rogue" archives. These vulnerabilities allow attackers to use —manipulating file paths within the archive—to write files to locations outside the intended extraction folder. The flaw typically involves the weaponization of symbolic
Given the recent association of archives named "Waterfall" with path traversal exploits, you should (like a virtual machine) if you received it from an untrusted source. Extracting such files with an outdated version of 7-Zip could compromise your system.
Ensure you have waterfall.7z.001 , waterfall.7z.002 , and any subsequent numbered files in the same folder. The software automatically detects and joins the remaining
Users are urged to update to 7-Zip version 25.00 or later to patch these issues. Handling .7z.001, .7z.002, etc.