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Vulnerability record · CVE-2025-12211 · published 27 October 2025

CVE-2025-12211: Tenda o3 firmware1.0.0.10\(2478\) memory buffer overflow vulnerability

Tenda · O3 Firmware1.0.0.10\(2478\)

A security flaw has been discovered in Tenda O3 1.0.0.10(2478). Affected by this issue is the function SetValue/GetValue of the file /goform/setDmzInfo. The manipulation of the argument dmzIP results in stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks.

7.4 CVSS 4.0 High EPSS 0.84% · top 43.9% CWE-119 · Memory buffer overflowCWE-121 · Stack-based buffer overflow
7.4CVSS 4.0 base score, v2 9.0
0.84%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

A security flaw has been discovered in Tenda O3 1.0.0.10(2478). Affected by this issue is the function SetValue/GetValue of the file /goform/setDmzInfo. The manipulation of the argument dmzIP results in stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks.

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/noahze01/IoT-vulnerable/blob/main/Tenda/O3v2.0/setDmzInfo.md ExploitThird Party Advisory
https://vuldb.com/?ctiid.329881 Permissions RequiredVDB Entry
https://vuldb.com/?id.329881 Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.673265 Third Party AdvisoryVDB Entry
https://www.tenda.com.cn/ Product
https://github.com/noahze01/IoT-vulnerable/blob/main/Tenda/O3v2.0/setDmzInfo.md ExploitThird Party Advisory

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Related vulnerabilities

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

8.7CVE-2024-6964Tenda o3 firmware1.0.0.10\(2478\) stack-based buffer overflow vulnerabilityA vulnerability, which was classified as critical, was found in Tenda O3 1.0.0.10. Affected is the function fromDhcpSetSer. The manipulation of the a…EPSS 1.2%8.7CVE-2024-6965Tenda o3 firmware1.0.0.10\(2478\) stack-based buffer overflow vulnerabilityA vulnerability has been found in Tenda O3 1.0.0.10 and classified as critical. Affected by this vulnerability is the function fromVirtualSet. The ma…EPSS 1.3%8.7CVE-2024-6962Tenda o3 firmware1.0.0.10\(2478\) stack-based buffer overflow vulnerabilityA vulnerability classified as critical was found in Tenda O3 1.0.0.10. This vulnerability affects the function formQosSet. The manipulation of the ar…EPSS 1.2%8.7CVE-2024-6963Tenda o3 firmware1.0.0.10\(2478\) stack-based buffer overflow vulnerabilityA vulnerability, which was classified as critical, has been found in Tenda O3 1.0.0.10. This issue affects the function formexeCommand. The manipulat…EPSS 1.3%7.4CVE-2025-12214Tenda o3 firmware1.0.0.10\(2478\) memory buffer overflow vulnerabilityA vulnerability was detected in Tenda O3 1.0.0.10(2478). This issue affects the function SetValue/GetValue of the file /goform/sysAutoReboot. Perform…EPSS 0.80%7.4CVE-2025-12213Tenda o3 firmware1.0.0.10\(2478\) memory buffer overflow vulnerabilityA security vulnerability has been detected in Tenda O3 1.0.0.10(2478). This vulnerability affects the function SetValue/GetValue of the file /goform/…EPSS 0.80%7.4CVE-2025-12212Tenda o3 firmware1.0.0.10\(2478\) memory buffer overflow vulnerabilityA weakness has been identified in Tenda O3 1.0.0.10(2478). This affects the function SetValue/GetValue of the file /goform/setNetworkService. This ma…EPSS 0.80%7.4CVE-2025-12209Tenda o3 firmware1.0.0.10\(2478\) memory buffer overflow vulnerabilityA vulnerability was determined in Tenda O3 1.0.0.10(2478). Affected is the function SetValue/GetValue of the file /goform/setDhcpConfig. Executing a …EPSS 1.0%

Source: NIST National Vulnerability Database (record CVE-2025-12211), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.