Vulnerability-Lookup

VAR-202507-2575

Vulnerability from variot - Updated: 2025-08-15 05:32

A vulnerability classified as critical was found in TOTOLINK T6 4.1.5cu.748_B20211015. This vulnerability affects the function tcpcheck_net of the file /router/meshSlaveDlfw of the component MQTT Packet Handler. The manipulation of the argument serverIp leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. TOTOLINK of t6 The firmware contains a buffer error vulnerability and a classic buffer overflow vulnerability.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. The TOTOLINK T6 is a wireless router product from TOTOLINK. An attacker could exploit this vulnerability by remotely crafting malicious data to trigger the buffer overflow, potentially executing arbitrary code or causing the system to crash

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CVE-2025-8170 (GCVE-0-2025-8170)

Vulnerability from cvelistv5 – Published: 2025-07-25 21:02 – Updated: 2025-07-28 14:53

Title

TOTOLINK T6 MQTT Packet meshSlaveDlfw tcpcheck_net buffer overflow

Summary

Severity ?

8.7 (High)


                        
                          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

8.8 (High)


                        
                          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

8.8 (High)


                        
                          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

CWE

CWE-120 - Buffer Overflow
CWE-119 - Memory Corruption

Assigner

VulDB

References

URL

Tags

	https://vuldb.com/?id.317584	vdb-entrytechnical-description
	https://vuldb.com/?ctiid.317584	signaturepermissions-required
	https://vuldb.com/?submit.620834	third-party-advisory
	https://github.com/AnduinBrian/Public/blob/main/T…	related
	https://github.com/AnduinBrian/Public/blob/main/T…	exploit
	https://www.totolink.net/	product

Impacted products

	Vendor	Product	Version
	TOTOLINK	T6	Affected: 4.1.5cu.748_B20211015

Credits

reisen_1943 (VulDB User)

Show details on NVD website

JSON

To clipboard

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                "timestamp": "2025-07-28T14:53:11.222349Z",
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        "title": "CISA ADP Vulnrichment"
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        {
          "modules": [
            "MQTT Packet Handler"
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            {
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            "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-120",
              "description": "Buffer Overflow",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-119",
              "description": "Memory Corruption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-07-25T21:02:07.203Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "name": "VDB-317584 | TOTOLINK T6 MQTT Packet meshSlaveDlfw tcpcheck_net buffer overflow",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/?id.317584"
        },
        {
          "name": "VDB-317584 | CTI Indicators (IOB, IOC, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/?ctiid.317584"
        },
        {
          "name": "Submit #620834 | TOTOLINK T6 V4.1.5cu.748_B20211015 Buffer Overflow",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/?submit.620834"
        },
        {
          "tags": [
            "related"
          ],
          "url": "https://github.com/AnduinBrian/Public/blob/main/Totolink%20T6/Vuln/9.md"
        },
        {
          "tags": [
            "exploit"
          ],
          "url": "https://github.com/AnduinBrian/Public/blob/main/Totolink%20T6/Vuln/9.md#poc"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://www.totolink.net/"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2025-07-25T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2025-07-25T02:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2025-07-25T09:41:37.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "TOTOLINK T6 MQTT Packet meshSlaveDlfw tcpcheck_net buffer overflow"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2025-8170",
    "datePublished": "2025-07-25T21:02:07.203Z",
    "dateReserved": "2025-07-25T07:36:32.690Z",
    "dateUpdated": "2025-07-28T14:53:25.227Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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.

Detection rules are retrieved from Rulezet.

Action not permitted

VAR-202507-2575

CVE-2025-8170 (GCVE-0-2025-8170)

Tags

Sightings

Nomenclature