CVE-2025-12241 (GCVE-0-2025-12241)
Vulnerability from cvelistv5 – Published: 2025-10-27 07:02 – Updated: 2025-10-27 18:03
VLAI
EPSS
VEX
Title
TOTOLINK A3300R POST Parameter cstecgi.cgi setLanguageCfg stack-based overflow
Summary
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.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-27 18:02 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.329911 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.329911 | signaturepermissions-required |
| https://vuldb.com/?submit.673723 | third-party-advisory |
| https://github.com/noahze01/IoT-vulnerable/blob/m… | exploit |
| https://www.totolink.net/ | product |
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-12241",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-10-27T18:02:46.378488Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-10-27T18:03:42.756Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"modules": [
"POST Parameter Handler"
],
"product": "A3300R",
"vendor": "TOTOLINK",
"versions": [
{
"status": "affected",
"version": "17.0.0cu.557_B20221024"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "yhryhryhr_tu (VulDB User)"
}
],
"descriptions": [
{
"lang": "en",
"value": "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."
},
{
"lang": "de",
"value": "In TOTOLINK A3300R 17.0.0cu.557_B20221024 ist eine Schwachstelle entdeckt worden. Betroffen ist die Funktion setLanguageCfg der Datei /cgi-bin/cstecgi.cgi der Komponente POST Parameter Handler. Dank Manipulation des Arguments lang mit unbekannten Daten kann eine stack-based buffer overflow-Schwachstelle ausgenutzt werden. Es ist m\u00f6glich, den Angriff aus der Ferne durchzuf\u00fchren. Der Exploit wurde der \u00d6ffentlichkeit bekannt gemacht und k\u00f6nnte verwendet werden."
}
],
"metrics": [
{
"cvssV4_0": {
"baseScore": 8.7,
"baseSeverity": "HIGH",
"vectorString": "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",
"version": "4.0"
}
},
{
"cvssV3_1": {
"baseScore": 8.8,
"baseSeverity": "HIGH",
"vectorString": "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",
"version": "3.1"
}
},
{
"cvssV3_0": {
"baseScore": 8.8,
"baseSeverity": "HIGH",
"vectorString": "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",
"version": "3.0"
}
},
{
"cvssV2_0": {
"baseScore": 9,
"vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR",
"version": "2.0"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-121",
"description": "Stack-based Buffer Overflow",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-119",
"description": "Memory Corruption",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-10-27T07:02:10.780Z",
"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"shortName": "VulDB"
},
"references": [
{
"name": "VDB-329911 | TOTOLINK A3300R POST Parameter cstecgi.cgi setLanguageCfg stack-based overflow",
"tags": [
"vdb-entry",
"technical-description"
],
"url": "https://vuldb.com/?id.329911"
},
{
"name": "VDB-329911 | CTI Indicators (IOB, IOC, IOA)",
"tags": [
"signature",
"permissions-required"
],
"url": "https://vuldb.com/?ctiid.329911"
},
{
"name": "Submit #673723 | TOTOLINK A3300R V17.0.0cu.557_B20221024 Buffer Overflow",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/?submit.673723"
},
{
"tags": [
"exploit"
],
"url": "https://github.com/noahze01/IoT-vulnerable/blob/main/TOTOLink/A3300R/setLanguageCfg.md"
},
{
"tags": [
"product"
],
"url": "https://www.totolink.net/"
}
],
"timeline": [
{
"lang": "en",
"time": "2025-10-25T00:00:00.000Z",
"value": "Advisory disclosed"
},
{
"lang": "en",
"time": "2025-10-25T02:00:00.000Z",
"value": "VulDB entry created"
},
{
"lang": "en",
"time": "2025-10-25T19:17:06.000Z",
"value": "VulDB entry last update"
}
],
"title": "TOTOLINK A3300R POST Parameter cstecgi.cgi setLanguageCfg stack-based overflow"
}
},
"cveMetadata": {
"assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"assignerShortName": "VulDB",
"cveId": "CVE-2025-12241",
"datePublished": "2025-10-27T07:02:10.780Z",
"dateReserved": "2025-10-25T17:11:46.044Z",
"dateUpdated": "2025-10-27T18:03:42.756Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2025-12241",
"date": "2026-10-08",
"epss": "0.01029",
"percentile": "0.62601"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"modules": [
"POST Parameter Handler"
],
"product": "A3300R",
"vendor": "TOTOLINK",
"versions": [
{
"status": "affected",
"version": "17.0.0cu.557_B20221024"
}
]
}
],
"source": "cna@vuldb.com"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:totolink:a3300r_firmware:17.0.0cu.557_b20221024:*:*:*:*:*:*:*",
"matchCriteriaId": "DD39B647-3419-4C6D-A6A2-30F40822A27D",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:totolink:a3300r:-:*:*:*:*:*:*:*",
"matchCriteriaId": "7F723A73-4B32-4F9E-B5DA-80134D4711C1",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "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."
},
{
"lang": "es",
"value": "Se detect\u00f3 una vulnerabilidad en TOTOLINK A3300R 17.0.0cu.557_B20221024. Esto afecta a la funci\u00f3n setLanguageCfg del archivo /cgi-bin/cstecgi.cgi del componente Gestor de Par\u00e1metros POST. La manipulaci\u00f3n del argumento lang resulta en desbordamiento de b\u00fafer basado en pila. Es posible lanzar el ataque remotamente. El exploit ahora es p\u00fablico y puede ser utilizado."
}
],
"id": "CVE-2025-12241",
"lastModified": "2026-10-08T11:10:00.250",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "HIGH",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "SINGLE",
"availabilityImpact": "COMPLETE",
"baseScore": 9.0,
"confidentialityImpact": "COMPLETE",
"integrityImpact": "COMPLETE",
"vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C",
"version": "2.0"
},
"exploitabilityScore": 8.0,
"impactScore": 10.0,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "cna@vuldb.com",
"type": "Secondary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 5.9,
"source": "cna@vuldb.com",
"type": "Secondary"
}
],
"cvssMetricV40": [
{
"cvssData": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"availabilityRequirement": "NOT_DEFINED",
"baseScore": 7.4,
"baseSeverity": "HIGH",
"confidentialityRequirement": "NOT_DEFINED",
"exploitMaturity": "PROOF_OF_CONCEPT",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"privilegesRequired": "LOW",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "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:X/V:X/RE:X/U:X",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"source": "cna@vuldb.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2025-12241",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-10-27T18:02:46.378488Z",
"version": "2.0.3"
}
}
]
},
"published": "2025-10-27T07:15:39.827",
"references": [
{
"source": "cna@vuldb.com",
"tags": [
"Exploit",
"Third Party Advisory"
],
"url": "https://github.com/noahze01/IoT-vulnerable/blob/main/TOTOLink/A3300R/setLanguageCfg.md"
},
{
"source": "cna@vuldb.com",
"tags": [
"Permissions Required",
"VDB Entry"
],
"url": "https://vuldb.com/?ctiid.329911"
},
{
"source": "cna@vuldb.com",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"url": "https://vuldb.com/?id.329911"
},
{
"source": "cna@vuldb.com",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"url": "https://vuldb.com/?submit.673723"
},
{
"source": "cna@vuldb.com",
"tags": [
"Product"
],
"url": "https://www.totolink.net/"
}
],
"sourceIdentifier": "cna@vuldb.com",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-119"
},
{
"lang": "en",
"value": "CWE-121"
}
],
"source": "cna@vuldb.com",
"type": "Secondary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2025-10-28T07:59:22+00:00",
"cve": "CVE-2025-12241",
"id": "CVE-2025-12241",
"initial_release_date": "2025-01-01T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "TOTOLINK A3300R POST Parameter cstecgi.cgi setLanguageCfg stack-based overflow",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-12241.json",
"version": "3"
},
"vulnrichment": {
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-12241",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-10-27T18:02:46.378488Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-10-27T18:03:37.609Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"modules": [
"POST Parameter Handler"
],
"product": "A3300R",
"vendor": "TOTOLINK",
"versions": [
{
"status": "affected",
"version": "17.0.0cu.557_B20221024"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "yhryhryhr_tu (VulDB User)"
}
],
"descriptions": [
{
"lang": "en",
"value": "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."
},
{
"lang": "de",
"value": "In TOTOLINK A3300R 17.0.0cu.557_B20221024 ist eine Schwachstelle entdeckt worden. Betroffen ist die Funktion setLanguageCfg der Datei /cgi-bin/cstecgi.cgi der Komponente POST Parameter Handler. Dank Manipulation des Arguments lang mit unbekannten Daten kann eine stack-based buffer overflow-Schwachstelle ausgenutzt werden. Es ist m\u00f6glich, den Angriff aus der Ferne durchzuf\u00fchren. Der Exploit wurde der \u00d6ffentlichkeit bekannt gemacht und k\u00f6nnte verwendet werden."
}
],
"metrics": [
{
"cvssV4_0": {
"baseScore": 8.7,
"baseSeverity": "HIGH",
"vectorString": "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",
"version": "4.0"
}
},
{
"cvssV3_1": {
"baseScore": 8.8,
"baseSeverity": "HIGH",
"vectorString": "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",
"version": "3.1"
}
},
{
"cvssV3_0": {
"baseScore": 8.8,
"baseSeverity": "HIGH",
"vectorString": "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",
"version": "3.0"
}
},
{
"cvssV2_0": {
"baseScore": 9,
"vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR",
"version": "2.0"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-121",
"description": "Stack-based Buffer Overflow",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-119",
"description": "Memory Corruption",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-10-27T07:02:10.780Z",
"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"shortName": "VulDB"
},
"references": [
{
"name": "VDB-329911 | TOTOLINK A3300R POST Parameter cstecgi.cgi setLanguageCfg stack-based overflow",
"tags": [
"vdb-entry",
"technical-description"
],
"url": "https://vuldb.com/?id.329911"
},
{
"name": "VDB-329911 | CTI Indicators (IOB, IOC, IOA)",
"tags": [
"signature",
"permissions-required"
],
"url": "https://vuldb.com/?ctiid.329911"
},
{
"name": "Submit #673723 | TOTOLINK A3300R V17.0.0cu.557_B20221024 Buffer Overflow",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/?submit.673723"
},
{
"tags": [
"exploit"
],
"url": "https://github.com/noahze01/IoT-vulnerable/blob/main/TOTOLink/A3300R/setLanguageCfg.md"
},
{
"tags": [
"product"
],
"url": "https://www.totolink.net/"
}
],
"timeline": [
{
"lang": "en",
"time": "2025-10-25T00:00:00.000Z",
"value": "Advisory disclosed"
},
{
"lang": "en",
"time": "2025-10-25T02:00:00.000Z",
"value": "VulDB entry created"
},
{
"lang": "en",
"time": "2025-10-25T19:17:06.000Z",
"value": "VulDB entry last update"
}
],
"title": "TOTOLINK A3300R POST Parameter cstecgi.cgi setLanguageCfg stack-based overflow"
}
},
"cveMetadata": {
"assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"assignerShortName": "VulDB",
"cveId": "CVE-2025-12241",
"datePublished": "2025-10-27T07:02:10.780Z",
"dateReserved": "2025-10-25T17:11:46.044Z",
"dateUpdated": "2025-10-27T18:03:42.756Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…