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Vulnerability record · CVE-2025-9298 · published 21 August 2025

CVE-2025-9298: Tenda m3 firmware memory buffer overflow vulnerability

Tenda · M3 Firmware

A flaw has been found in Tenda M3 1.0.0.12. Affected is the function formQuickIndex of the file /goform/QuickIndex. Executing manipulation of the argument PPPOEPassword can lead to stack-based buffer overflow. The attack can be launched remotely. The exploit has been published and may be used.

7.4 CVSS 4.0 High EPSS 1.1% · top 34.7% CWE-119 · Memory buffer overflowCWE-121 · Stack-based buffer overflow
7.4CVSS 4.0 base score, v2 9.0
1.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References, 4 tagged exploit
17 Jun 2026Last modified by NVD

Description

A flaw has been found in Tenda M3 1.0.0.12. Affected is the function formQuickIndex of the file /goform/QuickIndex. Executing manipulation of the argument PPPOEPassword can lead to stack-based buffer overflow. The attack can be launched remotely. The exploit has been published and may be used.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/davybat/IoT-Vuls/blob/main/tenda/formQuickIndex.md ExploitThird Party Advisory
https://github.com/davybat/IoT-Vuls/blob/main/tenda/formQuickIndex.md#poc ExploitThird Party Advisory
https://vuldb.com/?ctiid.320903 Permissions RequiredVDB Entry
https://vuldb.com/?id.320903 Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.632335 Third Party AdvisoryVDB Entry
https://www.tenda.com.cn/ Product
https://github.com/davybat/IoT-Vuls/blob/main/tenda/formQuickIndex.md ExploitThird Party Advisory
https://github.com/davybat/IoT-Vuls/blob/main/tenda/formQuickIndex.md#poc ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2023-51093Tenda m3 firmware out-of-bounds write vulnerabilityTenda M3 V1.0.0.12(4856) was discovered to contain a stack overflow via the function fromSetLocalVlanInfo.EPSS 0.84%9.8CVE-2023-51091Tenda m3 firmware out-of-bounds write vulnerabilityTenda M3 V1.0.0.12(4856) was discovered to contain a stack overflow via the function R7WebsSecurityHandler.EPSS 8.5%9.8CVE-2023-51094Tenda m3 firmware os command injection vulnerabilityTenda M3 V1.0.0.12(4856) was discovered to contain a Command Execution vulnerability via the function TendaTelnet.EPSS 1.1%9.8CVE-2023-51092Tenda m3 firmware out-of-bounds write vulnerabilityTenda M3 V1.0.0.12(4856) was discovered to contain a stack overflow via the function upgrade.EPSS 13%9.8CVE-2023-51090Tenda m3 firmware out-of-bounds write vulnerabilityTenda M3 V1.0.0.12(4856) was discovered to contain a stack overflow via the function formGetWeiXinConfig.EPSS 0.70%9.8CVE-2023-51095Tenda m3 firmware out-of-bounds write vulnerabilityTenda M3 V1.0.0.12(4856) was discovered to contain a stack overflow via the function formDelWlRfPolicy.EPSS 0.76%9.8CVE-2022-27080Tenda m3 firmware command injection vulnerabilityTenda M3 1.10 V1.0.0.12(4856) was discovered to contain a command injection vulnerability via the component /goform/setWorkmode.EPSS 2.6%9.8CVE-2022-26289Tenda m3 firmware os command injection vulnerabilityTenda M3 1.10 V1.0.0.12(4856) was discovered to contain a command injection vulnerability via the component /goform/exeCommand.EPSS 2.6%

Source: NIST National Vulnerability Database (record CVE-2025-9298), CISA KEV, FIRST EPSS (scores of 2026-10-15). This page is refreshed as NVD updates the record.