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.

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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
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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)
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