Tenda TX9 up to 22.03.02.10_multi SetStaticRouteCfg sub_42D03C list buffer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Tenda TX9 up to 22.03.02.10_multi. Affected by this vulnerability is the function sub_42D03C of the file /goform/SetStaticRouteCfg. This manipulation of the argument list causes buffer overflow. This vulnerability appears as CVE-2026-2138. The attack may be initiated remotely. In addition, an exploit is available.

Detailsinfo

A vulnerability classified as critical was found in Tenda TX9 up to 22.03.02.10_multi. Affected by this vulnerability is the function sub_42D03C of the file /goform/SetStaticRouteCfg. The manipulation of the argument list with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-2138. The exploitation appears to be easy. The attack can be launched remotely. Technical details and also a public exploit are known.

It is possible to download the exploit at github.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-5810). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.4

VulDB Base Score: 8.8
VulDB Temp Score: 8.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 8.8
CNA Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

02/06/2026 Advisory disclosed
02/06/2026 +0 days VulDB entry created
02/09/2026 +3 days VulDB entry last update

Sourcesinfo

Vendor: tenda.com.cn

Advisory: github.com
Status: Not defined

CVE: CVE-2026-2138 (🔒)
GCVE (CVE): GCVE-0-2026-2138
GCVE (VulDB): GCVE-100-344773
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 02/06/2026 22:08
Updated: 02/09/2026 07:43
Changes: 02/06/2026 22:08 (57), 02/08/2026 07:22 (31), 02/09/2026 07:43 (1)
Complete: 🔍
Submitter: kdb3169
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #747249: Tenda TX9 V22.03.02.10_multi Buffer Overflow (by github.com)

Duplicate

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