Stack-based Buffer Overflow in Tenda AX1803 Wireless Router
CVE-2026-1329

8.7HIGH

Key Information:

Vendor

Tenda
Status
Ax1803
Vendor
CVE Published:
22 January 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-1329?

A vulnerability has been identified in the Tenda AX1803 router, specifically within the 'fromGetWifiGuestBasic' function located in the '/goform/WifiGuestSet' file. This flaw occurs due to improper handling of input parameters, including 'guestWrlPwd', 'guestEn', 'guestSsid', 'hideSsid', and 'guestSecurity'. An attacker can exploit this vulnerability to execute a remote stack-based buffer overflow, potentially allowing unauthorized access to the system. This exploit has been shared publicly, increasing the risk for users of affected firmware versions.

Affected Version(s)

AX1803 1.0.0.1

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-2026-1329 - Proof of Concept

References

https://vuldb.com/?id.342305
vdb-entrytechnical-description
https://vuldb.com/?ctiid.342305
signaturepermissions-required
https://vuldb.com/?submit.736063
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

wlupus (VulDB User)
JSON
.