Vulnerability-Lookup

CNVD-2026-00818

Vulnerability from cnvd - Published: 2026-01-08

Title

UTT HiPER 840G缓冲区溢出漏洞（CNVD-2026-00818）

Description

UTT HiPER 840G是艾泰科技（UTT）推出的一款全千兆上网行为管理路由器，主要面向小型企业、社区网络、酒店等场景，提供高速网络接入与智能化管理功能。 UTT HiPER 840G存在缓冲区溢出漏洞，该漏洞源于对文件/goform/formP2PLimitConfig中参数except的错误操作,攻击者可利用该漏洞使应用程序崩溃或以应用程序上下文执行任意代码。

Severity

高

Formal description

目前厂商尚未发布升级程序修复该安全问题，详情见厂商官网： https://www.uttat.com/

Reference

https://github.com/d2pq/cve/blob/main/616/3.md

Impacted products

Name
UTT UTT HiPER 840G <=3.1.1-190328

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2025-6734",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2025-6734"
    }
  },
  "description": "UTT HiPER 840G\u662f\u827e\u6cf0\u79d1\u6280\uff08UTT\uff09\u63a8\u51fa\u7684\u4e00\u6b3e\u5168\u5343\u5146\u4e0a\u7f51\u884c\u4e3a\u7ba1\u7406\u8def\u7531\u5668\uff0c\u4e3b\u8981\u9762\u5411\u5c0f\u578b\u4f01\u4e1a\u3001\u793e\u533a\u7f51\u7edc\u3001\u9152\u5e97\u7b49\u573a\u666f\uff0c\u63d0\u4f9b\u9ad8\u901f\u7f51\u7edc\u63a5\u5165\u4e0e\u667a\u80fd\u5316\u7ba1\u7406\u529f\u80fd\u3002\n\nUTT HiPER 840G\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5bf9\u6587\u4ef6/goform/formP2PLimitConfig\u4e2d\u53c2\u6570except\u7684\u9519\u8bef\u64cd\u4f5c,\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u4f7f\u5e94\u7528\u7a0b\u5e8f\u5d29\u6e83\u6216\u4ee5\u5e94\u7528\u7a0b\u5e8f\u4e0a\u4e0b\u6587\u6267\u884c\u4efb\u610f\u4ee3\u7801\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5c1a\u672a\u53d1\u5e03\u5347\u7ea7\u7a0b\u5e8f\u4fee\u590d\u8be5\u5b89\u5168\u95ee\u9898\uff0c\u8be6\u60c5\u89c1\u5382\u5546\u5b98\u7f51\uff1a\r\nhttps://www.uttat.com/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2026-00818",
  "openTime": "2026-01-08",
  "products": {
    "product": "UTT UTT HiPER 840G \u003c=3.1.1-190328"
  },
  "referenceLink": "https://github.com/d2pq/cve/blob/main/616/3.md",
  "serverity": "\u9ad8",
  "submitTime": "2025-07-01",
  "title": "UTT HiPER 840G\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2026-00818\uff09"
}

CVE-2025-6734 (GCVE-0-2025-6734)

Vulnerability from cvelistv5 – Published: 2025-06-26 23:00 – Updated: 2025-06-27 14:07

Title

UTT HiPER 840G API formP2PLimitConfig sub_484E40 buffer overflow

Summary

A vulnerability was found in UTT HiPER 840G up to 3.1.1-190328. It has been rated as critical. This issue affects the function sub_484E40 of the file /goform/formP2PLimitConfig of the component API. The manipulation of the argument except leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

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.314009	vdb-entrytechnical-description
	https://vuldb.com/?ctiid.314009	signaturepermissions-required
	https://vuldb.com/?submit.597679	third-party-advisory
	https://github.com/d2pq/cve/blob/main/616/3.md	related
	https://github.com/d2pq/cve/blob/main/616/3.md#poc	exploit

Impacted products

	Vendor	Product	Version
	UTT	HiPER 840G	Affected: 3.1.1-190328

Credits

yuhongxiang (VulDB User)

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-6734",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-06-27T14:07:21.703459Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-06-27T14:07:51.343Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "modules": [
            "API"
          ],
          "product": "HiPER 840G",
          "vendor": "UTT",
          "versions": [
            {
              "status": "affected",
              "version": "3.1.1-190328"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "yuhongxiang (VulDB User)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability was found in UTT HiPER 840G up to 3.1.1-190328. It has been rated as critical. This issue affects the function sub_484E40 of the file /goform/formP2PLimitConfig of the component API. The manipulation of the argument except leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way."
        },
        {
          "lang": "de",
          "value": "Eine Schwachstelle wurde in UTT HiPER 840G bis 3.1.1-190328 ausgemacht. Sie wurde als kritisch eingestuft. Hierbei geht es um die Funktion sub_484E40 der Datei /goform/formP2PLimitConfig der Komponente API. Durch die Manipulation des Arguments except mit unbekannten Daten kann eine buffer overflow-Schwachstelle ausgenutzt werden. Umgesetzt werden kann der Angriff \u00fcber das Netzwerk. 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/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-120",
              "description": "Buffer Overflow",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-119",
              "description": "Memory Corruption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-06-26T23:00:13.348Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "name": "VDB-314009 | UTT HiPER 840G API formP2PLimitConfig sub_484E40 buffer overflow",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/?id.314009"
        },
        {
          "name": "VDB-314009 | CTI Indicators (IOB, IOC, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/?ctiid.314009"
        },
        {
          "name": "Submit #597679 | UTT HiPER 840G \u003c=V3v3.1.1-190328 Buffer Overflow",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/?submit.597679"
        },
        {
          "tags": [
            "related"
          ],
          "url": "https://github.com/d2pq/cve/blob/main/616/3.md"
        },
        {
          "tags": [
            "exploit"
          ],
          "url": "https://github.com/d2pq/cve/blob/main/616/3.md#poc"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2025-06-26T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2025-06-26T02:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2025-06-26T18:04:18.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "UTT HiPER 840G API formP2PLimitConfig sub_484E40 buffer overflow"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2025-6734",
    "datePublished": "2025-06-26T23:00:13.348Z",
    "dateReserved": "2025-06-26T15:59:09.849Z",
    "dateUpdated": "2025-06-27T14:07:51.343Z",
    "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

CNVD-2026-00818

CVE-2025-6734 (GCVE-0-2025-6734)

Tags

Sightings

Nomenclature