Buffer Overflow Vulnerability in TOTOLINK X15 HTTP POST Request Handler
CVE-2025-5786

8.7HIGH

Key Information:

Vendor

Totolink
Status
X15
Vendor
CVE Published:
6 June 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-5786?

A buffer overflow vulnerability has been discovered in the TOTOLINK X15 router, specifically within the HTTP POST Request Handler of the /boafrm/formDMZ file. Exploiting this vulnerability involves manipulating the 'submit-url' argument, which can lead to significant security risks as it allows remote attackers to execute arbitrary code. The details of this exploit have already been publicly disclosed, raising concerns for users of the affected product version.

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-2025-5786 - Proof of Concept

References

https://vuldb.com/?id.311334
vdb-entrytechnical-description
https://vuldb.com/?ctiid.311334
signaturepermissions-required
https://vuldb.com/?submit.591211
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

Lena-lyy02 (VulDB User)
.
CVE-2025-5786 : Buffer Overflow Vulnerability in TOTOLINK X15 HTTP POST Request Handler