← Vulnerability feed

Vulnerability record · CVE-2026-5567 · published 5 April 2026

CVE-2026-5567: Tenda m3 firmware memory buffer overflow vulnerability

Tenda · M3 Firmware

A flaw has been found in Tenda M3 1.0.0.10. This vulnerability affects the function setAdvPolicyData of the file /goform/setAdvPolicyData of the component Destination Handler. Executing a manipulation of the argument policyType can lead to buffer overflow. The attack can be executed remotely. The exploit has been published and may be used.

7.4 CVSS 4.0 High EPSS 1.0% · top 38.4% CWE-119 · Memory buffer overflowCWE-120 · Classic buffer overflow
7.4CVSS 4.0 base score, v2 9.0
1.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
5References, 1 tagged exploit
24 Jul 2026Last modified by NVD

Description

A flaw has been found in Tenda M3 1.0.0.10. This vulnerability affects the function setAdvPolicyData of the file /goform/setAdvPolicyData of the component Destination Handler. Executing a manipulation of the argument policyType can lead to buffer overflow. The attack can be executed 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/Moxxkidd/CVE/issues/2 ExploitThird Party Advisory
https://vuldb.com/submit/782999 Third Party AdvisoryVDB Entry
https://vuldb.com/vuln/355337 Third Party AdvisoryVDB Entry
https://vuldb.com/vuln/355337/cti Permissions RequiredVDB Entry
https://www.tenda.com.cn/ Product

Track CVE-2026-5567 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

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

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-2023-51091Tenda 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-2023-51092Tenda 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-2023-51093Tenda 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-2023-51094Tenda 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-2023-51095Tenda 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-2022-26289Tenda 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%9.8CVE-2022-26290Tenda 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/WriteFacMac.EPSS 2.6%

Source: NIST National Vulnerability Database (record CVE-2026-5567), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.