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5.3
NetExec's spider_plus module fails to handle malicious SMB file paths
CVE-2026-27884
Summary
The spider_plus module in NetExec can be tricked into saving files to unintended locations on a target system. This could allow an attacker to write or overwrite arbitrary files on the target system. To protect against this, update to version 1.5.1 or avoid using the DOWNLOAD feature with targets.
Original title
NetExec is a network execution tool. Prior to version 1.5.1, the module spider_plus improperly creates the output file and folder path when saving files from SMB shares. It does not take into accou...
Original description
NetExec is a network execution tool. Prior to version 1.5.1, the module spider_plus improperly creates the output file and folder path when saving files from SMB shares. It does not take into account that it is possible for Linux SMB shares to have path traversal characters such as `../` in them. An attacker can craft a filename in an SMB share that includes these characters, which when spider_plus crawls and downloads, can write or overwrite arbitrary files. The issue is patched in v1.5.1. As a workaround, do not run spider_plus with DOWNLOAD=true against targets.
nvd CVSS3.1
5.3
Vulnerability type
CWE-22
Path Traversal
Published: 26 Feb 2026 · Updated: 12 Mar 2026 · First seen: 6 Mar 2026