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ID

VAR-202510-2186


CVE

CVE-2025-12241


TITLE

TOTOLINK A3300R lang parameter buffer overflow vulnerability

Trust: 0.6

sources: CNVD: CNVD-2025-27444

DESCRIPTION

A vulnerability was detected in TOTOLINK A3300R 17.0.0cu.557_B20221024. This impacts the function setLanguageCfg of the file /cgi-bin/cstecgi.cgi of the component POST Parameter Handler. The manipulation of the argument lang results in stack-based buffer overflow. It is possible to launch the attack remotely. The exploit is now public and may be used. The TOTOLINK A3300R is a wireless router manufactured by TOTOLINK, a Chinese company. Version 17.0.0cu.557_B20221024 of the TOTOLINK A3300R contains a buffer overflow vulnerability. This vulnerability stems from the fact that the parameter `lang` in the file `/cgi-bin/cstecgi.cgi` 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-2025-12241 // CNVD: CNVD-2025-27444

IOT TAXONOMY

category:['Network device']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2025-27444

AFFECTED PRODUCTS

vendor:totolinkmodel:a3300rscope:eqversion:17.0.0cu.557_b20221024

Trust: 1.0

vendor:totolinkmodel:a3300r 17.0.0cu.557 b20221024scope: - version: -

Trust: 0.6

sources: CNVD: CNVD-2025-27444 // NVD: CVE-2025-12241

CVSS

SEVERITY

CVSSV2

CVSSV3

cna@vuldb.com: CVE-2025-12241
value: HIGH

Trust: 1.0

CNVD: CNVD-2025-27444
value: HIGH

Trust: 0.6

cna@vuldb.com: CVE-2025-12241
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-2025-27444
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-2025-12241
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-2025-27444 // NVD: CVE-2025-12241

PROBLEMTYPE DATA

problemtype:CWE-119

Trust: 1.0

problemtype:CWE-121

Trust: 1.0

sources: NVD: CVE-2025-12241

PATCH

title:Patch for TOTOLINK A3300R lang parameter buffer overflow vulnerabilityurl:https://www.cnvd.org.cn/patchInfo/show/749131

Trust: 0.6

sources: CNVD: CNVD-2025-27444

EXTERNAL IDS

db:NVDid:CVE-2025-12241

Trust: 1.6

db:VULDBid:329911

Trust: 1.0

db:CNVDid:CNVD-2025-27444

Trust: 0.6

sources: CNVD: CNVD-2025-27444 // NVD: CVE-2025-12241

REFERENCES

url:https://www.totolink.net/

Trust: 1.0

url:https://vuldb.com/?id.329911

Trust: 1.0

url:https://github.com/noahze01/iot-vulnerable/blob/main/totolink/a3300r/setlanguagecfg.md

Trust: 1.0

url:https://vuldb.com/?ctiid.329911

Trust: 1.0

url:https://vuldb.com/?submit.673723

Trust: 1.0

url:https://nvd.nist.gov/vuln/detail/cve-2025-12241

Trust: 0.6

sources: CNVD: CNVD-2025-27444 // NVD: CVE-2025-12241

SOURCES

db:CNVDid:CNVD-2025-27444
db:NVDid:CVE-2025-12241

LAST UPDATE DATE

2025-11-19T23:22:56.585000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2025-27444date:2025-11-10T00:00:00
db:NVDid:CVE-2025-12241date:2025-10-28T02:16:41.547

SOURCES RELEASE DATE

db:CNVDid:CNVD-2025-27444date:2025-11-05T00:00:00
db:NVDid:CVE-2025-12241date:2025-10-27T07:15:39.827