Description
Shenzhen Tenda Technology Co., Ltd Tenda W3 Wireless Router v1.0.0.3(2204) was discovered to contain a stack overflow in the wl_radio parameter of the formwrlSSIDset function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.
Published: 2026-06-09
Score: 7.5 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

The vulnerability is a stack overflow triggered by a crafted wl_radio parameter within the formwrlSSIDset function of the Tenda W3 Wireless Router firmware. This flaw allows an attacker to corrupt the call stack, leading to a forced reboot and consequently a denial‑of‑service condition. The weakness is classified as CWE-121, representing a stack‑based buffer overflow.

Affected Systems

Devices affected are Shenzhen Tenda Technology Co., Ltd. Tenda W3 Wireless Routers running firmware version 1.0.0.3(2204). No other product or version details are documented.

Risk and Exploitability

The CVSS score of 7.5 places this issue in the high severity range. The EPSS score is not available, and the vulnerability has not yet appeared in the CISA KEV catalog. Because the flaw is exposed through a web‑based configuration interface, it can likely be exploited remotely by sending a specially crafted request to the router over an exposed management network. A successful attack would result in repeated reboots, interrupting network services and availability.

Generated by OpenCVE AI on June 9, 2026 at 21:52 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Flash the router with the latest firmware that resolves the stack overflow.
  • If no firmware release is available, restrict access to the router’s web interface by placing it behind a firewall or on a separate management VLAN.
  • Continuously monitor the router’s reboot frequency and uptime to detect and respond to DoS attempts.

Generated by OpenCVE AI on June 9, 2026 at 21:52 UTC.

Tracking

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Advisories

No advisories yet.

History

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

Type Values Removed Values Added
Title Stack Overflow in Tenda W3 Wireless Router Results in DoS

Tue, 09 Jun 2026 19:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-121
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

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 wl_radio parameter of the formwrlSSIDset function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.
References

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-06-09T19:06:56.785Z

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

Link: CVE-2026-36771

cve-icon Vulnrichment

Updated: 2026-06-09T19:06:49.224Z

cve-icon NVD

Status : Deferred

Published: 2026-06-09T19:17:43.570

Modified: 2026-06-09T20:16:43.400

Link: CVE-2026-36771

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-09T22:00:19Z

Weaknesses