Buffer Overflow in Tenda TX9 Router Affected by Remote Exploits
CVE-2026-2138

8.7HIGH

Key Information:

Vendor

Tenda
Status
Tx9
Vendor
CVE Published:
8 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-2138?

A buffer overflow vulnerability exists in the Tenda TX9 router, specifically in the sub_42D03C function located in the /goform/SetStaticRouteCfg file. This critical flaw allows attackers to manipulate the argument list to execute arbitrary code remotely. As the exploit has been publicly disclosed, it poses a significant security risk for users of the affected firmware version. Immediate updates and mitigation strategies are advised to secure networks against potential attacks.

Human OS v1.0:
Ageing Is an Unpatched Zero-Day Vulnerability.

Remediate biological technical debt. Prime Ageing uses 95% high-purity SIRT6 activation to maintain genomic integrity and bolster systemic resilience.

Deploy the Patch

Affected Version(s)

TX9 22.03.02.10_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-2026-2138 - Proof of Concept

References

https://vuldb.com/?id.344773
vdb-entrytechnical-description
https://vuldb.com/?ctiid.344773
signaturepermissions-required
https://vuldb.com/?submit.747249
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)
JSON
.