CVE-2025-14601: vsDesk RCE Vulnerability

CVE-2025-14601 Overview

CVE-2025-14601 is an operating system (OS) command injection vulnerability in vsDesk, a help desk and IT service management platform. The flaw resides in the task scheduler component and stems from insufficient input filtering. An authenticated attacker holding administrative privileges can inject arbitrary OS commands that execute in the context of the web server process. Successful exploitation can disrupt web server operations, expose sensitive data, or lead to full server compromise. The vendor has released a fix in version 14.0101.

Critical Impact
Authenticated administrators can execute arbitrary OS commands, potentially achieving full compromise of the underlying host.

Affected Products

vsDesk versions prior to 14.0101
vsDesk Task Scheduler component
Deployments exposing the vsDesk administrative interface to network-reachable users

Discovery Timeline

2026-08-20 - CVE-2025-14601 published to the National Vulnerability Database (NVD)
2026-08-20 - Last updated in NVD database

Technical Details for CVE-2025-14601

Vulnerability Analysis

The vulnerability is classified under CWE-676: Use of Potentially Dangerous Function. vsDesk's task scheduler accepts user-supplied parameters that are passed to an OS command execution primitive without adequate sanitization or allow-listing. Because the scheduler is intended to invoke system-level operations, the input reaches a shell interpreter where metacharacters such as ;, |, &&, and backticks are interpreted rather than escaped.

An attacker authenticated as an administrator can craft scheduler payloads that append or chain arbitrary commands. These commands run with the privileges of the vsDesk web server process, which in many deployments has broad read and write access to the application directory, configuration files, and connected databases.

Root Cause

The root cause is the direct concatenation of untrusted input into a command string invoked by the task scheduler. The application does not enforce strict input validation, does not use parameterized execution APIs, and does not restrict the character set for scheduler fields. See the GitHub Security Advisory KLSA-00343 for the technical write-up.

Attack Vector

The attack vector is network-based. An attacker must first authenticate as an administrative user, then submit a malicious payload through the task scheduler interface. The server invokes the underlying shell with attacker-controlled content, causing arbitrary command execution. No user interaction from another party is required.

// No verified public exploit code is available.
// See KLSA-00343 for advisory-level technical details.

Detection Methods for CVE-2025-14601

Indicators of Compromise

Unexpected child processes spawned by the vsDesk web server or PHP worker processes, particularly shells such as /bin/sh, bash, cmd.exe, or powershell.exe
Task scheduler entries containing shell metacharacters (;, |, &, backticks, $()) in fields that should hold only identifiers or timestamps
Outbound network connections from the vsDesk host to unfamiliar IP addresses shortly after administrative logins

Detection Strategies

Review vsDesk application logs for administrative sessions that create or modify scheduled tasks, then correlate with process execution telemetry on the host
Alert on process lineage where the web server parent process spawns command interpreters or reconnaissance utilities such as whoami, id, net, or curl
Inspect stored scheduler configurations in the database for payload patterns and non-standard characters

Monitoring Recommendations

Enable verbose audit logging for the vsDesk administrative panel, including all task scheduler create, update, and delete operations
Forward host process telemetry to a centralized analytics platform and retain it for at least 90 days for retrospective hunting
Monitor for privileged account logins to vsDesk from unusual source IP addresses or outside expected business hours

How to Mitigate CVE-2025-14601

Immediate Actions Required

Upgrade vsDesk to version 14.0101 or later, which contains the vendor patch
Rotate credentials for all administrative accounts in vsDesk following the upgrade
Audit existing scheduled tasks for malicious entries created before the patch was applied
Restrict network access to the vsDesk administrative interface using firewall rules or a VPN

Patch Information

The vendor has released a fix. Apply the patch from vsdesk.ru. Versions 14.0101 and later incorporate corrected input handling in the task scheduler component. Review the KLSA-00343 advisory for additional remediation context.

Workarounds

Restrict administrative access to trusted operators only and enforce multi-factor authentication (MFA) for those accounts
Place the vsDesk administrative interface behind a reverse proxy that enforces IP allow-listing until patching completes
Run the vsDesk web server process under a least-privileged service account to limit the blast radius of command execution

bash

# Example: restrict access to the vsDesk admin interface at the reverse proxy
location /admin/ {
    allow 10.0.0.0/24;   # trusted management network
    deny all;
    proxy_pass http://vsdesk_backend;
}