Buffer Overflow Vulnerability in Tenda AC8 Router
CVE-2025-4368

8.7HIGH

Key Information:

Vendor
Tenda
Status
Ac8
Vendor
CVE Published:
6 May 2025

Badges

👾 Exploit Exists🟡 Public PoC

Summary

A buffer overflow vulnerability has been identified in the Tenda AC8 router, specifically within the formGetRouterStatus function located at /goform/MtuSetMacWan. This issue arises from inadequate handling of the shareSpeed argument, allowing an attacker to execute arbitrary code remotely. Given that the exploit has been disclosed publicly, it poses a significant risk to users who have not yet patched their devices. Ensuring firmware is updated to the latest version is crucial for maintaining security in affected devices.

Affected Version(s)

AC8 16.03.34.06

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2025-4368 - Proof of Concept

References

https://vuldb.com/?id.307488
vdb-entrytechnical-description
https://vuldb.com/?ctiid.307488
signaturepermissions-required
https://vuldb.com/?submit.564812
third-party-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

fjl1113 (VulDB User)
.
CVE-2025-4368 : Buffer Overflow Vulnerability in Tenda AC8 Router | SecurityVulnerability.io