CVE-2026-38713 Cudy CVE debrief

Who should care

Organizations using Cudy products, particularly those listed in the affected versions, should prioritize patching the command injection vulnerability in the ipsec_conn interface. This vulnerability can allow attackers to execute arbitrary commands as root, potentially leading to system compromise. Security teams and vulnerability management teams should review the affected scope and implement mitigations until patches are applied. Additionally, operators and administrators of affected products should verify input validation and authentication mechanisms for the ipsec_conn interface to prevent crafted input attacks. Monitoring and exception tracking should be implemented to detect potential exploitation attempts. Asset inventory and configuration management can help identify affected systems and prioritize remediation efforts. Change management and rollback procedures should be reviewed to ensure timely and effective remediation. Source tracking and incident response planning can also help organizations prepare for potential exploitation and minimize the impact of a successful attack. Patch management and vulnerability management processes should be reviewed to ensure that affected products are properly patched and that compensating controls are implemented until patches are applied.

Technical summary

A command injection vulnerability was discovered in the ipsec_conn interface of multiple Cudy products, including TR1200 v2.4.15, TR3000 v2.4.21, WR300 v2.4.25, WR1200 v2.4.23, WR1300 v2.4.22, WR1500 v2.3.10, WR3000 v2.4.19, WR3600 v2.3.16, and WR6500 v2.3.15. The vulnerability allows attackers to execute arbitrary commands as root via a crafted input. This vulnerability can be mitigated by prioritizing patching of affected products and implementing compensating controls.

Defensive priority

Organizations using TR1200 v2.4.15, TR3000 v2.4.21, WR300 v2.4.25, WR1200 v2.4.23, WR1300 v2.4.22, WR1500 v2.3.10, WR3000 v2.4.19, WR3600 v2.3.16, and WR6500 v2.3.15 should prioritize patching the command injection vulnerability in the ipsec_conn interface.

Recommended defensive actions

• Inventory affected products (TR1200 v2.4.15, TR3000 v2.4.21, WR300 v2.4.25, WR1200 v2.4.23, WR1300 v2.4.22, WR1500 v2.3.10, WR3000 v2.4.19, WR3600 v2.3.16, WR6500 v2.3.15) and check for patches
• Implement compensating controls, such as monitoring and exception tracking, until patches are applied
• Verify the authenticity of input to the ipsec_conn interface to prevent crafted input attacks
• Review system logs for suspicious activity
• Ensure that affected products are patched or mitigated
• Track exceptions and retest remediated assets
• Monitor for potential exploitation attempts

Evidence notes

The CVE record indicates a command injection vulnerability in the ipsec_conn interface of multiple products from Cudy. The vulnerability allows attackers to execute arbitrary commands as root via a crafted input. Evidence is limited, and further verification is needed to confirm the affected scope and vendor remediation. Defenders should verify input validation and authentication mechanisms for the ipsec_conn interface, review system logs for suspicious activity, and ensure that affected products are patched or mitigated.

Official resources