Buffer Overflow Vulnerability in Tenda AC10 Router
CVE-2025-4896

8.7HIGH

Key Information:

Vendor

Tenda
Status
Ac10
Vendor
CVE Published:
18 May 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-4896?

A buffer overflow vulnerability exists in Tenda AC10 routers, specifically within an unknown functionality of the /goform/UserCongratulationsExec file. This vulnerability allows attackers to manipulate the getuid argument, resulting in potential exploitation. The issue can be triggered remotely, posing significant risks to the integrity and security of affected devices. Given that the exploit has been publicly disclosed, all users of Tenda AC10 routers are advised to take immediate action to protect their systems.

Affected Version(s)

AC10 16.03.10.13

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-2025-4896 - Proof of Concept

References

https://vuldb.com/?id.309452
vdb-entrytechnical-description
https://vuldb.com/?ctiid.309452
signaturepermissions-required
https://vuldb.com/?submit.578034
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

wanglun (VulDB User)
.
CVE-2025-4896 : Buffer Overflow Vulnerability in Tenda AC10 Router