Stack Overflow Vulnerability in Tenda AX3 Firmware
CVE-2025-69763

9.8CRITICAL

Key Information:

Vendor

Tenda
Status
AX3 Firmware
Vendor
CVE Published:
21 January 2026

What is CVE-2025-69763?

The Tenda AX3 firmware v16.03.12.11 is susceptible to a stack overflow vulnerability in the formSetIptv function, specifically through the vlanId parameter. This flaw can lead to memory corruption, allowing remote attackers to execute arbitrary code on the device. Users are advised to update their firmware and implement security measures to mitigate risks.

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References

https://river-brow-763.notion.site/Tenda-AX3-Buffer-Overf...
https://river-brow-763.notion.site/Tenda-AX3-Buffer-Overf...

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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