Stack Overflow Vulnerabilities in Tenda O3 Wireless Router from Shenzhen Tenda Technology Co., Ltd.
CVE-2026-36779

7.5HIGH

Key Information:

Vendor

Shenzhen Tenda Technology Co., Ltd.

Status
Tenda O3 Wireless Router
Vendor
CVE Published:
9 June 2026

What is CVE-2026-36779?

The Tenda O3 Wireless Router, a product by Shenzhen Tenda Technology Co., Ltd., is affected by multiple stack overflow vulnerabilities in the fromVirtualSer function. These vulnerabilities arise from improper handling of parameters such as puVar2, puVar1, __s2, __s1_00, and puVar3. Exploiting these vulnerabilities may allow attackers to craft specific HTTP requests, leading to a Denial of Service (DoS) condition. Users are advised to monitor their devices and update to mitigate risks.

References

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

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.