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CVE-2026-2138

Tenda TX9 SetStaticRouteCfg sub_42D03C buffer overflow

HIGH
8.8
CVSS Score
Published: February 8, 2026 at 06:02 AM UTC
Updated: June 17, 2026 at 10:30 AM UTC
2 products affected across 1 vendorTX9 FirmwareTX9

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Severity
HIGH8.8
Exploit prediction
EPSS 0.8%
SSVC
PoC

Description

A vulnerability was found in Tenda TX9 up to 22.03.02.10_multi. Affected is the function sub_42D03C of the file /goform/SetStaticRouteCfg. The manipulation of the argument list results in buffer overflow. The attack can be launched remotely. The exploit has been made public and could be used.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

TX9 Firmware· Tenda
95%
v ≤ 22.03.02.10
tenda-tx9 (same device)
TX9· Tenda
60%
22.03.02.10_multi

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (6)

VDB EntryTechnical DescriptionThird Party Advisory
Source: cverecord
https://vuldb.com/?id.344773
SignaturePermissions RequiredVDB Entry
Source: cverecord
https://vuldb.com/?ctiid.344773
Third Party AdvisoryVDB Entry
Source: cverecord
https://vuldb.com/?submit.747249
RelatedExploitThird Party Advisory
Source: cverecord
https://github.com/MRAdera/IoT-Vuls/blob/main/tenda/tx9%20pro/SetStaticRouteCfg.md
Exploit
Source: cverecord
https://github.com/MRAdera/IoT-Vuls/blob/main/tenda/tx9%20pro/SetStaticRouteCfg.md#poc
Product
Source: cverecord
https://www.tenda.com.cn/

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHVulDB
Vector?

Quick Info

StatusANALYZED
CWE
CWE-120CWE-119

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