PatchSiren cyber security CVE debrief

CVE-2026-36807 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 webAuthUserPwd parameter of the formAddWebAuthUser 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: 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

Users of Tenda W15E v15.11.0.10

Technical summary

The vulnerability is a buffer overflow in the webAuthUserPwd parameter of the formAddWebAuthUser function in Tenda W15E v15.11.0.10. This allows an attacker to cause a Denial of Service (DoS) via a crafted HTTP request.

Defensive priority

HIGH

Recommended defensive actions

Apply the necessary patches or updates to fix the buffer overflow vulnerability in the formAddWebAuthUser function of Tenda W15E v15.11.0.10.
Restrict access to the affected system to only trusted users and networks.
Monitor the system for suspicious activity and implement additional security measures to prevent exploitation.

Evidence notes

The vulnerability was discovered in Tenda W15E v15.11.0.10 and has been assigned a CVSS score of 7.5 and a severity of HIGH.

Official resources

CVE-2026-36807 was published on [2026-06-09T19:17:46.410Z](https://www.cve.org/CVERecord?id=CVE-2026-36807) and modified on [2026-06-10T20:17:02.640Z](https://nvd.nist.gov/vuln/detail/CVE-2026-36807).