CVE-2026-36779

HIGH

Tenda O3 Wireless Router 1.0.0.5(4180) - Multiple Stack Overflow via fromVirtualSer Parameters

Title source: llm

Description

Shenzhen Tenda Technology Co., Ltd Tenda O3 Wireless Router v1.0.0.5(4180) was discovered to contain multiple stack overflows in the fromVirtualSer function via the puVar2, puVar1, __s2, __s1_00, and puVar3 parameters. These vulnerabilities allow attackers to cause a Denial of Service (DoS) via a crafted HTTP request.

References (1)

Core 1

Core References

https://github.com/xhh0124/SemVulLLM/tree/main/O3/fromVirtualSer

View Writeup ZIP pw:eip

Scores

CVSS v3 7.5

EPSS 0.0040

EPSS Percentile 31.3%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment

Exploitation poc

Automatable yes

Technical Impact partial

Details

CWE

CWE-121

Status published

Published Jun 09, 2026

Tracked Since Jun 10, 2026