Stack-Based Buffer Overflow in Tenda AC18 Router
CVE-2025-14993

8.7HIGH

Key Information:

Vendor

Tenda
Status
Ac18
Vendor
CVE Published:
21 December 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-14993?

A vulnerability identified in the Tenda AC18 router version 15.03.05.05 allows for a stack-based buffer overflow due to improper handling of the 'scanList' argument within the sprintf function of the HTTP Request Handler. This flaw can be exploited remotely, potentially enabling unauthorized access or control over the affected device. The exploit is publicly available, underscoring the urgency for users to apply necessary security measures.

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Affected Version(s)

AC18 15.03.05.05

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-2025-14993 - Proof of Concept

CVE-2025-14993 - Proof of Concept

References

https://vuldb.com/?id.337687
vdb-entrytechnical-description
https://vuldb.com/?ctiid.337687
signaturepermissions-required
https://vuldb.com/?submit.719084
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

z472421519 (VulDB User)
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