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PatchSiren cyber security CVE debrief

CVE-2026-36793 Shenzhen Tenda Technology Co., Ltd CVE debrief

A vulnerability was discovered in Shenzhen Tenda Technology Co., Ltd Tenda W3 Wireless Router v1.0.0.3(2204). The formwrlSSIDset function contains multiple stack overflows via the mit_ssid and mis_ssid_index parameters. These vulnerabilities allow attackers to cause a Denial of Service (DoS) via a crafted HTTP request.

Vendor
Shenzhen Tenda Technology Co., Ltd
Product
Tenda W3 Wireless Router
CVSS
HIGH 7.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-09
Original CVE updated
2026-06-10
Advisory published
2026-06-09
Advisory updated
2026-06-10

Who should care

Users of Shenzhen Tenda Technology Co., Ltd Tenda W3 Wireless Router v1.0.0.3(2204) should be aware of this vulnerability and take necessary precautions.

Technical summary

The vulnerability has a CVSS score of 7.5 and a HIGH severity. The CVSS vector is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Defensive priority

HIGH

Recommended defensive actions

  • Apply patches or updates provided by the vendor to fix the vulnerability.
  • Limit access to the affected system to trusted users only.
  • Monitor network traffic for suspicious activity.

Evidence notes

The vulnerability was reported via [ref-4](https://github.com/xhh0124/SemVulLLM/tree/main/W3/FUN_00442b44).

Sources and references

Verified primary and authoritative sources

  • CVE-2026-36793 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-36793

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-36793 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-36793

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.