CVE-2025-4496 (GCVE-0-2025-4496)
Vulnerability from cvelistv5 – Published: 2025-05-10 05:00 – Updated: 2025-05-12 19:30
VLAI
EPSS
VEX
Title
TOTOLINK T10/A3100R/A950RG/A800R/N600R/A3000RU/A810R cstecgi.cgi CloudACMunualUpdate buffer overflow
Summary
A vulnerability was found in TOTOLINK T10, A3100R, A950RG, A800R, N600R, A3000RU and A810R 4.1.8cu.5241_B20210927. It has been declared as critical. This vulnerability affects the function CloudACMunualUpdate of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument FileName leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-05-12 19:30 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.308212 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.308212 | signaturepermissions-required |
| https://vuldb.com/?submit.567081 | third-party-advisory |
| https://github.com/CH13hh/tmp_store_cc/blob/main/… | exploit |
| https://www.totolink.net/ | product |
Impacted products
7 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| TOTOLINK | T10 |
Affected:
4.1.8cu.5241_B20210927
|
guessed | |
| TOTOLINK | A3100R |
Affected:
4.1.8cu.5241_B20210927
|
guessed | |
| TOTOLINK | A950RG |
Affected:
4.1.8cu.5241_B20210927
|
guessed | |
| TOTOLINK | A800R |
Affected:
4.1.8cu.5241_B20210927
|
guessed | |
| TOTOLINK | N600R |
Affected:
4.1.8cu.5241_B20210927
|
guessed | |
| TOTOLINK | A3000RU |
Affected:
4.1.8cu.5241_B20210927
|
guessed | |
| TOTOLINK | A810R |
Affected:
4.1.8cu.5241_B20210927
|
guessed |
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{
"source": "cna@vuldb.com",
"tags": [
"Product"
],
"url": "https://www.totolink.net/"
},
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"tags": [
"Broken Link"
],
"url": "https://github.com/CH13hh/tmp_store_cc/blob/main/tt/ta/1.md"
}
],
"sourceIdentifier": "cna@vuldb.com",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-119"
},
{
"lang": "en",
"value": "CWE-120"
}
],
"source": "cna@vuldb.com",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-120"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2025-05-28T18:16:53+00:00",
"cve": "CVE-2025-4496",
"id": "CVE-2025-4496",
"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 T10/A3100R/A950RG/A800R/N600R/A3000RU/A810R cstecgi.cgi CloudACMunualUpdate buffer overflow",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-4496.json",
"version": "3"
},
"vulnrichment": {
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-4496",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-05-12T19:30:52.980508Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-05-12T19:30:47.754Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://github.com/CH13hh/tmp_store_cc/blob/main/tt/ta/1.md"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "T10",
"vendor": "TOTOLINK",
"versions": [
{
"status": "affected",
"version": "4.1.8cu.5241_B20210927"
}
]
},
{
"product": "A3100R",
"vendor": "TOTOLINK",
"versions": [
{
"status": "affected",
"version": "4.1.8cu.5241_B20210927"
}
]
},
{
"product": "A950RG",
"vendor": "TOTOLINK",
"versions": [
{
"status": "affected",
"version": "4.1.8cu.5241_B20210927"
}
]
},
{
"product": "A800R",
"vendor": "TOTOLINK",
"versions": [
{
"status": "affected",
"version": "4.1.8cu.5241_B20210927"
}
]
},
{
"product": "N600R",
"vendor": "TOTOLINK",
"versions": [
{
"status": "affected",
"version": "4.1.8cu.5241_B20210927"
}
]
},
{
"product": "A3000RU",
"vendor": "TOTOLINK",
"versions": [
{
"status": "affected",
"version": "4.1.8cu.5241_B20210927"
}
]
},
{
"product": "A810R",
"vendor": "TOTOLINK",
"versions": [
{
"status": "affected",
"version": "4.1.8cu.5241_B20210927"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "BabyShark (VulDB User)"
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability was found in TOTOLINK T10, A3100R, A950RG, A800R, N600R, A3000RU and A810R 4.1.8cu.5241_B20210927. It has been declared as critical. This vulnerability affects the function CloudACMunualUpdate of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument FileName leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used."
},
{
"lang": "de",
"value": "In TOTOLINK T10, A3100R, A950RG, A800R, N600R, A3000RU and A810R 4.1.8cu.5241_B20210927 wurde eine Schwachstelle ausgemacht. Sie wurde als kritisch eingestuft. Betroffen ist die Funktion CloudACMunualUpdate der Datei /cgi-bin/cstecgi.cgi. Durch die Manipulation des Arguments FileName mit unbekannten Daten kann eine buffer overflow-Schwachstelle ausgenutzt werden. Der Angriff kann \u00fcber das Netzwerk passieren. Der Exploit steht zur \u00f6ffentlichen Verf\u00fcgung."
}
],
"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",
"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",
"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",
"version": "3.0"
}
},
{
"cvssV2_0": {
"baseScore": 9,
"vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C",
"version": "2.0"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-120",
"description": "Buffer Overflow",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-119",
"description": "Memory Corruption",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-05-10T05:00:10.763Z",
"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"shortName": "VulDB"
},
"references": [
{
"name": "VDB-308212 | TOTOLINK T10/A3100R/A950RG/A800R/N600R/A3000RU/A810R cstecgi.cgi CloudACMunualUpdate buffer overflow",
"tags": [
"vdb-entry",
"technical-description"
],
"url": "https://vuldb.com/?id.308212"
},
{
"name": "VDB-308212 | CTI Indicators (IOB, IOC, IOA)",
"tags": [
"signature",
"permissions-required"
],
"url": "https://vuldb.com/?ctiid.308212"
},
{
"name": "Submit #567081 | TOTOLINK T10/A3100R/A950RG/A800R/N600R/A3000RU/A810R V4.1.8cu.5241_B20210927 Buffer Overflow",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/?submit.567081"
},
{
"tags": [
"exploit"
],
"url": "https://github.com/CH13hh/tmp_store_cc/blob/main/tt/ta/1.md"
},
{
"tags": [
"product"
],
"url": "https://www.totolink.net/"
}
],
"timeline": [
{
"lang": "en",
"time": "2025-05-09T00:00:00.000Z",
"value": "Advisory disclosed"
},
{
"lang": "en",
"time": "2025-05-09T02:00:00.000Z",
"value": "VulDB entry created"
},
{
"lang": "en",
"time": "2025-05-09T14:38:47.000Z",
"value": "VulDB entry last update"
}
],
"title": "TOTOLINK T10/A3100R/A950RG/A800R/N600R/A3000RU/A810R cstecgi.cgi CloudACMunualUpdate buffer overflow"
}
},
"cveMetadata": {
"assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"assignerShortName": "VulDB",
"cveId": "CVE-2025-4496",
"datePublished": "2025-05-10T05:00:10.763Z",
"dateReserved": "2025-05-09T12:33:38.764Z",
"dateUpdated": "2025-05-12T19:30:55.738Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
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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.
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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.
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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.
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