Buffer Overflow Vulnerability in TOTOLINK A3002RU HTTP POST Request Handler
CVE-2025-6953

8.7HIGH

Key Information:

Vendor

Totolink
Status
A3002ru
Vendor
CVE Published:
1 July 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-6953?

A buffer overflow vulnerability has been identified in the HTTP POST Request Handler of the TOTOLINK A3002RU, specifically in the function managing submission URLs. This weakness allows for remote exploitation, where an attacker can manipulate the 'submit-url' argument to cause a buffer overflow, potentially leading to unauthorized access or execution of arbitrary code. The exploit has been publicly disclosed, raising concerns for users of this device.

Affected Version(s)

A3002RU 3.0.0-B20230809.1615

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-2025-6953 - Proof of Concept

References

https://vuldb.com/?id.314490
vdb-entrytechnical-description
https://vuldb.com/?ctiid.314490
signaturepermissions-required
https://vuldb.com/?submit.605874
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

yuhongxiang (VulDB User)
.
CVE-2025-6953 : Buffer Overflow Vulnerability in TOTOLINK A3002RU HTTP POST Request Handler