CVE-2026-6989 Details
Description
A vulnerability has been found in Tenda F453 up to 1.0.0.3. Impacted is the function TendaTelnet of the file /goform/telnet of the component Telnet Service. Such manipulation leads to command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.
A command injection vulnerability has been identified in the Tenda F453 router, affecting firmware versions through 1.0.0.3. The issue arises in the Telnet service component, specifically within the TendaTelnet function of the /goform/telnet file. This vulnerability allows remote attackers to inject commands by exploiting the lack of proper access control and input validation. Once the Telnet service is enabled, attackers can gain interactive shell access and execute arbitrary commands on the device.
It is recommended to remove or restrict access to the /goform/telnet endpoint, add authentication and authorization checks to the TendaTelnet function, and avoid directly executing system commands to manage service states. Additionally, all web management endpoints should include input validation, authentication, and audit logging. Users should upgrade to a patched firmware version as soon as it is available.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 27, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/alc9700jmo/CVE/issues/24 | [email protected] | ExploitIssue TrackingThird Party Advisory |
| https://vuldb.com/submit/796560 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/vuln/359541 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/vuln/359541/cti | [email protected] | Permissions RequiredVDB Entry |
| https://www.tenda.com.cn/ | [email protected] | Product |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-74 | Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') | [email protected] |
| CWE-77 | Improper Neutralization of Special Elements used in a Command ('Command Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| tenda f453 firmware | 1.0.0.3 |
CPE
Remediation
| |
| tenda f453 | All versions |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 30, 2026 | Initial Analysis | [email protected] |
| Apr 29, 2026 | Data Remediation | [email protected] |
| Apr 25, 2026 | New CVE Received | [email protected] |