Buffer Overflow Vulnerability in TOTOLINK X15 HTTP POST Request Handler
CVE-2025-6399

8.7HIGH

Key Information:

Vendor

Totolink
Status
X15
Vendor
CVE Published:
21 June 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-6399?

A buffer overflow vulnerability has been identified in the HTTP POST Request Handler of the TOTOLINK X15, specifically within the function responsible for handling input at /boafrm/formIPv6Addr. By manipulating the 'submit-url' argument, an attacker can exploit this weakness, potentially allowing remote code execution. The vulnerability has been disclosed publicly, making it critical for users to apply necessary security measures to mitigate the risk of exploitation.

Affected Version(s)

X15 1.0.0-B20230714.1105

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-2025-6399 - Proof of Concept

References

https://vuldb.com/?id.313392
vdb-entrytechnical-description
https://vuldb.com/?ctiid.313392
signaturepermissions-required
https://vuldb.com/?submit.597681
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-2025-6399 : Buffer Overflow Vulnerability in TOTOLINK X15 HTTP POST Request Handler