PatchSiren cyber security CVE debrief

CVE-2026-36816 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 in the wewifiWhiteUserInfo parameter of the formAddWewifiWhiteUser function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted HTTP request. The vulnerability has a CVSS score of 7.5 and a severity of HIGH.

Vendor: Shenzhen Tenda Technology Co., Ltd
Product: 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

Users of 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 wewifiWhiteUserInfo parameter of the formAddWewifiWhiteUser function. This allows attackers to cause a Denial of Service (DoS) via a crafted HTTP request.

Defensive priority

HIGH

Recommended defensive actions

Apply patches or updates provided by the vendor to fix the buffer overflow vulnerability.
Restrict access to the affected system to prevent unauthorized access.
Monitor the system for suspicious activity.

Evidence notes

The vulnerability was discovered in Tenda W15E v15.11.0.10. The CVSS score is 7.5 with a severity of HIGH.

Official resources

CVE-2026-36816 was published on 2026-06-09T19:17:47.250Z and modified on 2026-06-10T20:17:18.910Z.