CVE-2025-14586
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-12-13

Last updated on: 2026-04-29

Assigner: VulDB

Description
A vulnerability was determined in TOTOLINK X5000R 9.1.0cu.2089_B20211224. Affected by this issue is the function snprintf of the file /cgi-bin/cstecgi.cgi?action=exportOvpn&type=user. This manipulation of the argument User causes os command injection. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized.
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Meta Information
Published
2025-12-13
Last Modified
2026-04-29
Generated
2026-06-16
AI Q&A
2025-12-13
EPSS Evaluated
2026-06-14
NVD
CVE-2025-14586
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
totolink x5000r_firmware 9.1.0cu.2089_b20211224
totolink x5000r *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-77 The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.
CWE-78 The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.
Attack-Flow Graph
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Detection Guidance

This vulnerability can be detected by monitoring HTTP requests to the vulnerable endpoint /cgi-bin/cstecgi.cgi with parameters action=exportOvpn and type=user. Suspicious or unexpected values in the 'user' parameter that include shell metacharacters or command injection patterns may indicate exploitation attempts. Network intrusion detection systems (NIDS) can be configured to alert on such patterns. Additionally, you can use curl or wget commands to test the endpoint with crafted inputs to see if command injection is possible. For example, sending a request like: curl 'http://<router-ip>/cgi-bin/cstecgi.cgi?action=exportOvpn&type=user&User=;id' and observing if the output includes command execution results. However, no specific detection commands are provided in the resources. [2, 3]

Mitigation Strategies

Immediate mitigation steps include replacing the affected product or upgrading the firmware to a version that is not vulnerable, if available. Since no known mitigations or countermeasures currently exist for this vulnerability, it is recommended to restrict access to the device's management interface from untrusted networks, implement network-level filtering to block access to the vulnerable CGI endpoint, and monitor for exploitation attempts. Applying network segmentation and limiting administrative access can reduce risk until a patch or fix is available. [2]

Executive Summary

This vulnerability exists in the TOTOLINK X5000R firmware version 9.1.0cu.2089_B20211224, specifically in the snprintf function of the file /cgi-bin/cstecgi.cgi?action=exportOvpn&type=user. It allows an attacker to manipulate the User argument to perform OS command injection, enabling remote exploitation.

Impact Analysis

The vulnerability can allow a remote attacker to execute arbitrary operating system commands on the affected device, potentially leading to unauthorized control, data compromise, or disruption of service.

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