Buffer Overflow in Totolink A3002MU Router Product
CVE-2026-93739

9.4CRITICAL

Key Information:

Vendor

Totolink
Status
A3002mu
Vendor
CVE Published:
18 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-93739?

A buffer overflow vulnerability exists in the Totolink A3002MU router, specifically affecting the formWlAc function of /boafrm/formWlAc. By manipulating the submit-url argument, an attacker could exploit this issue remotely. This vulnerability has been publicly disclosed, indicating a potential risk for users of this device.

Affected Version(s)

A3002MU Hh-B20211125.1046

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-2026-93739 - Proof of Concept

References

https://vuldb.com/vuln/407549
vdb-entrytechnical-description
https://vuldb.com/vuln/407549/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-93739
third-party-advisory

CVSS V4

Score:
9.4
Severity:
CRITICAL
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

sunnyyang (VulDB User)
.