Cudy WR6500 Net Set Wan Interface command injection

Summaryinfo

A vulnerability marked as very critical has been reported in Cudy TR1200, TR3000, WR1200, WR1300, WR1500, WR300, WR3000, WR3600 and WR6500. Affected is an unknown function of the component Net Set Wan Interface. This manipulation causes command injection. This vulnerability is registered as CVE-2026-38709. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in Cudy TR1200, TR3000, WR1200, WR1300, WR1500, WR300, WR3000, WR3600 and WR6500. It has been declared as very critical. Affected by this vulnerability is an unknown code of the component Net Set Wan Interface. The manipulation with an unknown input leads to a command injection vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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 were discovered to contain a command injection vulnerability in the net.set_wan interface. This vulnerability allows attackers to execute arbitrary commands as root via a crafted input.

It is possible to read the advisory at cudy.com. This vulnerability is known as CVE-2026-38709 since 04/06/2026. The exploitation appears to be easy. The attack can be launched remotely. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/30/2026). The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

• Cudy

Name

• TR1200
• TR3000
• WR300
• WR1200
• WR1300
• WR1500
• WR3000
• WR3600
• WR6500

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion