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CVE-2025-57791 is an insufficient input-validation vulnerability in Commvault Backup & Recovery that permits a remote attacker to inject or manipulate command-line arguments passed to internal components. Successful exploitation can establish a valid session assigned to a low-privilege user role.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a single Metasploit module targeting Commvault software on Windows, exploiting a chain of vulnerabilities (CVE-2025-57790, CVE-2025-57791, and CVE-2025-57788) to achieve unauthenticated remote code execution. The exploit works by first leaking a host name via an unauthenticated API endpoint, then performing command-line argument injection to gain access as the 'localadmin' user, and finally leveraging expression language injection to execute arbitrary commands. The default payload is a PowerShell reverse shell, but the module supports arbitrary command execution. The exploit runs as the NETWORK SERVICE user and can drop web shells and modify user descriptions as part of its operation. The module is operational and suitable for real-world exploitation, with automatic cleanup routines for artifacts. The only file present is a Ruby script structured as a standard Metasploit exploit module, making use of Metasploit's HTTP client and file dropper mixins. The main attack vector is network-based, targeting the Commvault web interface over HTTPS (default port 443).
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
7 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.