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.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

Access Vector Network

Access Complexity Low

Authentication Single

Confidentiality Impact Complete

Integrity Impact Complete

Availability Impact Complete

This CVE is not in the KEV list.

The EPSS score is 0.00207.

Exploitation poc

Automatable no

Technical Impact total

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Tenda O3 affected
Version Status Constraints
1.0.0.10(2478) affected
—

Configuration 1 [-]

AND
cpe:2.3:o:tenda:o3_firmware1.0.0.10\(2478\):*:*:*:*:*:*:*:*
cpe:2.3:h:tenda:o3:2.0:*:*:*:*:*:*:*

No data.

Vendor Product Confidence Versions
Tenda O3 — —

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Subscriptions

Vendors Products
Tenda Subscribe
O3 Subscribe
O3 Firmware Subscribe
O3 Firmware1.0.0.10\(2478\) Subscribe

Tracking

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/noahze01/IoT-vulnerable/blob/main/Tenda/O3v2.0/setDmzInfo.md cve-icon cve-icon cve-icon
https://vuldb.com/?ctiid.329881 cve-icon cve-icon
https://vuldb.com/?id.329881 cve-icon cve-icon
https://vuldb.com/?submit.673265 cve-icon cve-icon
https://www.tenda.com.cn/ cve-icon cve-icon
History

Tue, 24 Feb 2026 07:30:00 +0000

Type Values Removed Values Added
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 exploited. 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.
First Time appeared Tenda o3 Firmware
CPEs cpe:2.3:o:tenda:o3_firmware:*:*:*:*:*:*:*:*
Vendors & Products Tenda o3 Firmware

Tue, 28 Oct 2025 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Mon, 27 Oct 2025 20:45:00 +0000

Type Values Removed Values Added
First Time appeared Tenda
Tenda o3
Tenda o3 Firmware1.0.0.10\(2478\)
CPEs cpe:2.3:h:tenda:o3:2.0:*:*:*:*:*:*:*
cpe:2.3:o:tenda:o3_firmware1.0.0.10\(2478\):*:*:*:*:*:*:*:*
Vendors & Products Tenda
Tenda o3
Tenda o3 Firmware1.0.0.10\(2478\)

Mon, 27 Oct 2025 03:45:00 +0000

Type Values Removed Values Added
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 exploited.
Title Tenda O3 setDmzInfo GetValue stack-based overflow
Weaknesses CWE-119
CWE-121
References
Metrics cvssV2_0

{'score': 9, 'vector': 'AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 8.8, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 8.7, 'vector': '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'}
cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-02-24T07:05:04.159Z

Reserved: 2025-10-25T11:59:09.592Z

Link: CVE-2025-12211

cve-icon Vulnrichment

Updated: 2025-10-28T13:22:23.658Z

cve-icon NVD

Status : Modified

Published: 2025-10-27T04:15:48.783

Modified: 2026-02-24T08:16:20.527

Link: CVE-2025-12211

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-10-27T22:06:29Z

Weaknesses