Description
Shenzhen Tenda Technology Co., Ltd Tenda W3 Wireless Router v1.0.0.3(2204) was discovered to contain a stack overflow in the Go parameter of the ask_to_reboot function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.
Published: 2026-06-09
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

The vulnerability is a stack overflow in the Go parameter of the ask_to_reboot function (CWE-121). It can be triggered by a crafted input that causes the firmware to crash, resulting in a denial of service. The flaw leads to an uncontrolled memory overwrite that terminates the process handling the request.

Affected Systems

Shenzhen Tenda Technology Co., Ltd Tenda W3 Wireless Router, firmware version v1.0.0.3(2204).

Risk and Exploitability

The CVSS score of 6.5 indicates moderate severity, but stack overflows typically allow attackers to force a device to reboot or become unresponsive. The EPSS score is < 1% and the vulnerability is not listed in CISA KEV. The likely attack vector is local network traffic directed to the router, requiring an attacker to send a specifically crafted request to the ask_to_reboot function.

Generated by OpenCVE AI on June 10, 2026 at 23:05 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Update the router to the latest firmware that addresses the ask_to_reboot bug, if one is available from Shenzhen Tenda.
  • Restrict the router’s administrative interface to trusted networks only, blocking external access to the replay or ask_to_reboot endpoint.
  • If a firmware update is unavailable, disable the ask_to_reboot functionality or manually reboot the device and monitor logs for repeated reboot attempts to detect exploitation.

Generated by OpenCVE AI on June 10, 2026 at 23:05 UTC.

Tracking

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Advisories

No advisories yet.

History

Wed, 10 Jun 2026 23:30:00 +0000

Type Values Removed Values Added
Title Stack Overflow in Tenda W3 Router ask_to_reboot Function Causes DoS

Wed, 10 Jun 2026 21:00:00 +0000

Type Values Removed Values Added
Title Stack Overflow in ask_to_reboot Function Causing DoS on Tenda W3 Router
Weaknesses CWE-120

Wed, 10 Jun 2026 18:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-121
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 10 Jun 2026 11:30:00 +0000

Type Values Removed Values Added
First Time appeared Tenda
Tenda w3 Wireless Router
Vendors & Products Tenda
Tenda w3 Wireless Router

Tue, 09 Jun 2026 22:15:00 +0000

Type Values Removed Values Added
Title Stack Overflow in ask_to_reboot Function Causing DoS on Tenda W3 Router
Weaknesses CWE-120

Tue, 09 Jun 2026 18:45:00 +0000

Type Values Removed Values Added
Description Shenzhen Tenda Technology Co., Ltd Tenda W3 Wireless Router v1.0.0.3(2204) was discovered to contain a stack overflow in the Go parameter of the ask_to_reboot function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.
References

Subscriptions

Tenda W3 Wireless Router
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-06-10T17:36:31.852Z

Reserved: 2026-04-06T00:00:00.000Z

Link: CVE-2026-36773

cve-icon Vulnrichment

Updated: 2026-06-10T17:36:29.040Z

cve-icon NVD

Status : Deferred

Published: 2026-06-09T19:17:43.857

Modified: 2026-06-10T18:16:44.633

Link: CVE-2026-36773

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-10T23:15:28Z

Weaknesses
  • CWE-121

    Stack-based Buffer Overflow