PatchSiren cyber security CVE debrief

CVE-2026-36772 Shenzhen Tenda Technology Co., Ltd CVE debrief

A stack overflow vulnerability was discovered in the Tenda W3 Wireless Router v1.0.0.3(2204) in the wl_radio parameter of the formwrlSSIDget function. This allows attackers to cause a Denial of Service (DoS) via a crafted input. The vulnerability has a CVSS score of 6.5 and a severity of MEDIUM.

Vendor: Shenzhen Tenda Technology Co., Ltd
Product: Tenda W3 Wireless Router
CVSS: MEDIUM 6.5
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 is caused by a stack overflow in the wl_radio parameter of the formwrlSSIDget function. This can be exploited by attackers to cause a Denial of Service (DoS).

Defensive priority

MEDIUM

Recommended defensive actions

Update to a patched version of the Tenda W3 Wireless Router if available.
Limit access to the router's management interface.
Monitor for suspicious activity.

Evidence notes

The vulnerability was discovered and reported by an unknown source.

Official resources

CVE-2026-36772 was published on 2026-06-09T19:17:43.727Z and modified on 2026-06-10T18:16:44.453Z.