Security researchers have uncovered a critical series of vulnerabilities in Commvault’s backup and data management software that could enable attackers to achieve remote code execution and compromise on-premises infrastructure.
The flaws, discovered by Watchtowr Labs, represent a significant threat to organizations relying on Commvault’s widely-deployed backup solutions.
The vulnerability chain consists of four distinct security issues that can be exploited in sequence to gain unauthorized access to Commvault systems.
These pre-authentication remote code execution (RCE) vulnerabilities allow attackers to bypass security controls and execute malicious code without requiring valid credentials.
The research, titled with characteristic humor as referencing someone “stupid enough to rob the same vault twice,” highlights the severity of chaining multiple vulnerabilities together for maximum impact.
The discovered vulnerabilities have been assigned official CVE identifiers and span multiple attack vectors:
| CVE | Vendor Synopsis |
| CVE-2025-57788 | Unauthorized API Access Risk |
| CVE-2025-57789 | Vulnerability in Initial Administrator Login Process |
| CVE-2025-57790 | Path Traversal Vulnerability |
| CVE-2025-57791 | Argument Injection Vulnerability in CommServe |
The combination of these vulnerabilities creates a particularly dangerous attack scenario. The unauthorized API access risk (CVE-2025-57788) potentially allows attackers to interact with Commvault’s management interfaces without proper authentication.
The administrator login process vulnerability (CVE-2025-57789) could enable account takeover or privilege escalation during initial system setup.
The path traversal vulnerability (CVE-2025-57790) presents risks of unauthorized file access and data exfiltration, while the argument injection flaw in CommServe (CVE-2025-57791) could allow command execution on the underlying system.
When chained together, these vulnerabilities provide attackers with a complete pathway from initial access to full system compromise.
Organizations using Commvault backup solutions should immediately review the vendor’s security advisories and apply available patches.
The pre-authentication nature of these vulnerabilities makes them particularly concerning, as they can be exploited by external attackers without requiring insider access or stolen credentials.
Given the critical role backup systems play in business continuity and disaster recovery, compromising these systems could have severe operational and data security implications for affected organizations.
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