CVE-2026-25070: XikeStor SKS8310-8X Firmware RCE Flaw

CVE-2026-25070 Overview

CVE-2026-25070 is a critical OS command injection vulnerability affecting the XikeStor SKS8310-8X Network Switch. Firmware versions 1.04.B07 and prior contain a severe security flaw in the /goform/PingTestSet endpoint that enables unauthenticated remote attackers to execute arbitrary operating system commands. By injecting malicious commands through the destIp parameter, attackers can achieve remote code execution with root privileges on the vulnerable network switch.

This vulnerability is classified under CWE-78 (Improper Neutralization of Special Elements used in an OS Command), a well-known weakness where user-supplied input is not properly sanitized before being passed to system command execution functions.

Critical Impact

Unauthenticated attackers can gain complete root-level control over affected network switches remotely, potentially compromising entire network infrastructure segments.

Affected Products

• Seekswan ZikeStor SKS8310-8X Firmware versions 1.04.B07 and prior
• Seekswan ZikeStor SKS8310-8X Network Switch Hardware

Discovery Timeline

• 2026-03-07 - CVE-2026-25070 published to NVD
• 2026-03-12 - Last updated in NVD database

Technical Details for CVE-2026-25070

Vulnerability Analysis

This vulnerability stems from improper input validation in the ping test functionality of the XikeStor SKS8310-8X network switch's web management interface. The /goform/PingTestSet endpoint accepts user input via the destIp parameter without adequate sanitization, allowing an attacker to append shell metacharacters and arbitrary commands.

The attack requires no authentication, meaning anyone with network access to the switch's management interface can exploit this vulnerability. Given that network switches often operate with elevated privileges to perform their core functions, successful exploitation grants root-level access to the underlying operating system.

The network-accessible nature of this vulnerability combined with the lack of authentication requirements makes it particularly dangerous in enterprise environments where network infrastructure devices may be accessible from multiple network segments.

Root Cause

The root cause of CVE-2026-25070 is the failure to properly sanitize user-supplied input in the destIp parameter before concatenating it with shell commands. The firmware's ping test functionality appears to construct a system command string using the user-provided IP address without filtering shell metacharacters such as semicolons (;), pipes (|), backticks (`), or command substitution syntax ($()).

When the web application passes the unsanitized destIp value directly to a system call or shell execution function, any embedded command injection payloads are executed with the privileges of the underlying process—typically root on embedded network devices.

Attack Vector

The attack vector for this vulnerability is network-based and requires no user interaction or prior authentication. An attacker can exploit this vulnerability by:

1. Identifying an exposed XikeStor SKS8310-8X management interface on the network
2. Sending a crafted HTTP request to the /goform/PingTestSet endpoint
3. Including command injection payloads in the destIp parameter using shell metacharacters
4. Achieving arbitrary command execution as root on the target device

The vulnerability can be exploited by injecting shell metacharacters into the destIp parameter. For example, instead of providing a legitimate IP address, an attacker could supply a payload like 127.0.0.1; <malicious_command> or $(malicious_command) to execute arbitrary system commands. The ping functionality would execute the legitimate ping operation followed by the injected malicious command with root privileges.

For additional technical details about the affected device, see the OpenWRT Device Information page.

Detection Methods for CVE-2026-25070

Indicators of Compromise

• Unusual HTTP POST requests to /goform/PingTestSet containing shell metacharacters (;, |, $(), backticks) in the destIp parameter
• Unexpected outbound network connections from network switch management interfaces
• Anomalous processes running on the switch that are not part of normal firmware operations
• Evidence of command execution artifacts such as downloaded files, new user accounts, or modified configurations

Detection Strategies

• Implement network intrusion detection rules to monitor HTTP traffic to the /goform/PingTestSet endpoint for command injection patterns
• Deploy web application firewall (WAF) rules to block requests containing shell metacharacters in form parameters targeting switch management interfaces
• Monitor authentication and access logs from network switches for unusual access patterns or failed exploitation attempts
• Use SentinelOne Singularity to detect behavioral anomalies and command injection attempts across network infrastructure

Monitoring Recommendations

• Enable and centralize logging from all network switch management interfaces for security monitoring
• Configure alerting for any requests to sensitive administrative endpoints like /goform/PingTestSet
• Implement network segmentation to isolate switch management interfaces and monitor cross-segment access attempts
• Regularly audit network switch configurations and running processes for signs of compromise

How to Mitigate CVE-2026-25070

Immediate Actions Required

• Restrict network access to the XikeStor SKS8310-8X management interface to trusted administrative networks only
• Implement firewall rules to block untrusted access to the web management interface on affected devices
• Monitor affected switches for signs of exploitation while awaiting vendor patches
• Consider disabling the web management interface if not required and use alternative management methods

Patch Information

At the time of publication, no vendor security advisory or official patch has been released for CVE-2026-25070. Organizations using affected XikeStor SKS8310-8X devices should monitor vendor communications for firmware updates addressing this vulnerability. Contact Seekswan support for the latest information on available patches.

Workarounds

• Isolate affected switch management interfaces on a dedicated, restricted VLAN accessible only to authorized administrators
• Implement network-level access controls (ACLs) to limit which hosts can reach the /goform/PingTestSet endpoint
• Deploy a reverse proxy or WAF in front of the management interface to filter malicious input patterns
• Consider replacing vulnerable devices with alternatives that have received security updates if critical infrastructure protection is required

# Example network isolation configuration (firewall rule)
# Block external access to switch management interface
iptables -A INPUT -p tcp --dport 80 -s ! 10.0.0.0/24 -d <switch_mgmt_ip> -j DROP
iptables -A INPUT -p tcp --dport 443 -s ! 10.0.0.0/24 -d <switch_mgmt_ip> -j DROP