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PatchSiren cyber security CVE debrief

CVE-2026-36806 Shenzhen Tenda Technology Co., Ltd CVE debrief

A buffer overflow vulnerability was discovered in Shenzhen Tenda Technology Co., Ltd Tenda W15E v15.11.0.10. The vulnerability is located in the webAuthUserPwd parameter of the formModifyWebAuthUser function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted HTTP request. The Common Vulnerability Scoring System (CVSS) score for this vulnerability is 7.5, indicating a HIGH severity.

Vendor
Shenzhen Tenda Technology Co., Ltd
Product
Tenda W15E
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

Administrators and users of Shenzhen Tenda Technology Co., Ltd Tenda W15E v15.11.0.10 should be aware of this vulnerability and take necessary actions to mitigate it.

Technical summary

The vulnerability is caused by a buffer overflow in the webAuthUserPwd parameter of the formModifyWebAuthUser function. This can be exploited by sending a crafted HTTP request to the affected device, potentially leading to a Denial of Service (DoS).

Defensive priority

HIGH

Recommended defensive actions

  • Update to the latest version of Tenda W15E if available.
  • Restrict access to the affected device and monitor for suspicious activity.
  • Implement additional security measures such as firewall rules and intrusion detection systems.

Evidence notes

The vulnerability was discovered and reported by an unknown source. The CVE record was published on [cve-org](https://www.cve.org/CVERecord?id=CVE-2026-36806). The NVD detail can be found at [nvd](https://nvd.nist.gov/vuln/detail/CVE-2026-36806).

Sources and references

Verified primary and authoritative sources

  • CVE-2026-36806 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-36806

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

  • CVE-2026-36806 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-36806

    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.