Buffer Overflow in Tenda TX3 Router
CVE-2026-2137

8.7HIGH

Key Information:

Vendor

Tenda
Status
Tx3
Vendor
CVE Published:
8 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-2137?

A buffer overflow vulnerability exists in the Tenda TX3 routers, specifically in the SetIpMacBind function. This vulnerability allows for manipulation of input parameters, which could lead to an overflow condition, potentially allowing remote attackers to execute arbitrary code on the device. The vulnerability affects all TX3 models running versions up to 16.03.13.11_multi and has been publicly disclosed, which increases the risk of exploitation.

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Affected Version(s)

TX3 16.03.13.11_multi

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-2026-2137 - Proof of Concept

References

https://vuldb.com/?id.344772
vdb-entrytechnical-description
https://vuldb.com/?ctiid.344772
signaturepermissions-required
https://vuldb.com/?submit.747239
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

kdb3169 (VulDB User)
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