CVE-2026-6989: Command Injection in Tenda F453
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.
AI Analysis
Technical Summary
This vulnerability affects Tenda F453 routers running firmware versions 1.0.0.0 through 1.0.0.3. It arises from improper input handling in the TendaTelnet function of the Telnet service, specifically in the /goform/telnet endpoint. An attacker can remotely send crafted requests to inject commands, potentially leading to unauthorized command execution on the device. The vulnerability is categorized under CWE-77 (Improper Neutralization of Special Elements used in a Command) and CWE-74 (Injection). The CVSS 4.0 vector indicates network attack vector, low attack complexity, no privileges required, no user interaction, and low impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation can allow remote attackers to execute arbitrary commands on the affected Tenda F453 device, potentially compromising device integrity and control. However, the impact on confidentiality, integrity, and availability is rated low according to the CVSS vector. There are no reports of active exploitation in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — no official fix or vendor advisory is available at this time. Users should monitor Tenda's official channels for firmware updates addressing this vulnerability. Until a patch is released, disabling the Telnet service on the device, if possible, may reduce exposure to this vulnerability.
CVE-2026-6989: Command Injection in Tenda F453
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.
CVSS v4.0
Score 5.3medium
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects Tenda F453 routers running firmware versions 1.0.0.0 through 1.0.0.3. It arises from improper input handling in the TendaTelnet function of the Telnet service, specifically in the /goform/telnet endpoint. An attacker can remotely send crafted requests to inject commands, potentially leading to unauthorized command execution on the device. The vulnerability is categorized under CWE-77 (Improper Neutralization of Special Elements used in a Command) and CWE-74 (Injection). The CVSS 4.0 vector indicates network attack vector, low attack complexity, no privileges required, no user interaction, and low impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation can allow remote attackers to execute arbitrary commands on the affected Tenda F453 device, potentially compromising device integrity and control. However, the impact on confidentiality, integrity, and availability is rated low according to the CVSS vector. There are no reports of active exploitation in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — no official fix or vendor advisory is available at this time. Users should monitor Tenda's official channels for firmware updates addressing this vulnerability. Until a patch is released, disabling the Telnet service on the device, if possible, may reduce exposure to this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-04-24T19:24:59.040Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
- Epss Score
- 0.00667
- Epss Percentile
- 0.7136
- Epss Date
- 2026-04-26
- Gcve Source
- db.gcve.eu
Threat ID: 69ecf82f87115cfb6822369c
Added to database: 4/25/2026, 5:21:51 PM
Last enriched: 5/3/2026, 7:22:09 AM
Last updated: 6/9/2026, 9:56:50 PM
Views: 79
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