Buffer Overflow Vulnerability in Tenda AC7 Router
CVE-2025-5862

8.7HIGH

Key Information:

Vendor

Tenda
Status
Ac7
Vendor
CVE Published:
9 June 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-5862?

A buffer overflow vulnerability exists in the Tenda AC7 router's formSetPPTPUserList function located in /goform/setPptpUserList. This flaw arises from improper handling of user input, allowing attackers to manipulate the argument list. If exploited, this could enable remote attackers to execute arbitrary code within the context of the vulnerable application. The issue has been publicly disclosed, heightening the urgency for organizations to address the potential risk to their network security.

Affected Version(s)

AC7 15.03.06.44

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-2025-5862 - Proof of Concept

References

https://vuldb.com/?id.311621
vdb-entrytechnical-description
https://vuldb.com/?ctiid.311621
signaturepermissions-required
https://vuldb.com/?submit.591980
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

yhryhryhr_miemie (VulDB User)
.
CVE-2025-5862 : Buffer Overflow Vulnerability in Tenda AC7 Router