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ID

VAR-202510-2084


CVE

CVE-2025-12209


TITLE

Tenda O3 form/setDhcpConfig function buffer overflow vulnerability

Trust: 0.6

sources: CNVD: CNVD-2025-27236

DESCRIPTION

A vulnerability was determined in Tenda O3 1.0.0.10(2478). Affected is the function SetValue/GetValue of the file /goform/setDhcpConfig. Executing manipulation of the argument dhcpEn can lead to stack-based buffer overflow. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized. The Tenda O3 is an outdoor wireless bridge from Tenda, a Chinese company. This vulnerability stems from the fact that the `dhcpEn` parameter in the `SetValue/GetValue` function of the file `/goform/setDhcpConfig` fails to properly validate the length of the input data. Attackers could exploit this vulnerability to execute arbitrary code on the system or cause a denial-of-service attack

Trust: 1.44

sources: NVD: CVE-2025-12209 // CNVD: CNVD-2025-27236

IOT TAXONOMY

category:['Network device']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2025-27236

AFFECTED PRODUCTS

vendor:tendamodel:o3 1.0.0.10\scope:eqversion:*

Trust: 1.0

vendor:tendamodel:o3scope:eqversion:1.0.0.10

Trust: 0.6

sources: CNVD: CNVD-2025-27236 // NVD: CVE-2025-12209

CVSS

SEVERITY

CVSSV2

CVSSV3

cna@vuldb.com: CVE-2025-12209
value: HIGH

Trust: 1.0

CNVD: CNVD-2025-27236
value: HIGH

Trust: 0.6

cna@vuldb.com: CVE-2025-12209
severity: HIGH
baseScore: 9.0
vectorString: AV:N/AC:L/AU:S/C:C/I:C/A:C
accessVector: NETWORK
accessComplexity: LOW
authentication: SINGLE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 8.0
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.0

CNVD: CNVD-2025-27236
severity: HIGH
baseScore: 9.0
vectorString: AV:N/AC:L/AU:S/C:C/I:C/A:C
accessVector: NETWORK
accessComplexity: LOW
authentication: SINGLE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 8.0
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

cna@vuldb.com: CVE-2025-12209
baseSeverity: HIGH
baseScore: 8.8
vectorString: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: LOW
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 2.8
impactScore: 5.9
version: 3.1

Trust: 1.0

sources: CNVD: CNVD-2025-27236 // NVD: CVE-2025-12209

PROBLEMTYPE DATA

problemtype:CWE-119

Trust: 1.0

problemtype:CWE-121

Trust: 1.0

sources: NVD: CVE-2025-12209

EXTERNAL IDS

db:NVDid:CVE-2025-12209

Trust: 1.6

db:VULDBid:329879

Trust: 1.0

db:CNVDid:CNVD-2025-27236

Trust: 0.6

sources: CNVD: CNVD-2025-27236 // NVD: CVE-2025-12209

REFERENCES

url:https://github.com/noahze01/iot-vulnerable/blob/main/tenda/o3v2.0/setdhcpconfig.md

Trust: 1.0

url:https://www.tenda.com.cn/

Trust: 1.0

url:https://vuldb.com/?ctiid.329879

Trust: 1.0

url:https://vuldb.com/?submit.673263

Trust: 1.0

url:https://vuldb.com/?id.329879

Trust: 1.0

url:https://nvd.nist.gov/vuln/detail/cve-2025-12209

Trust: 0.6

sources: CNVD: CNVD-2025-27236 // NVD: CVE-2025-12209

SOURCES

db:CNVDid:CNVD-2025-27236
db:NVDid:CVE-2025-12209

LAST UPDATE DATE

2025-11-19T23:11:58.333000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2025-27236date:2025-11-07T00:00:00
db:NVDid:CVE-2025-12209date:2025-10-28T14:34:42.157

SOURCES RELEASE DATE

db:CNVDid:CNVD-2025-27236date:2025-11-05T00:00:00
db:NVDid:CVE-2025-12209date:2025-10-27T03:15:50.333