Vulnerability-Lookup

CNVD-2025-24489

Vulnerability from cnvd - Published: 2025-10-22

Title

Tenda AC8越界写入漏洞

Description

Tenda AC8是腾达（Tenda）推出的一款专为1000兆以内光纤家庭设计的双千兆无线路由器，支持IPv6协议，具备智能网络管理功能。 Tenda AC8存在越界写入漏洞，该漏洞源于存在sscanf问题，s8的最后一位被x0覆盖。攻击者可利用该漏洞执行set_client_qos后可获得对gp寄存器的控制权。

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.tenda.com.cn/

Reference

https://nvd.nist.gov/vuln/detail/CVE-2023-48194

Impacted products

Name
['Tenda AC8 4', 'Tenda AC8 16.03.34.09']

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JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2023-48194",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2023-48194"
    }
  },
  "description": "Tenda AC8\u662f\u817e\u8fbe\uff08Tenda\uff09\u63a8\u51fa\u7684\u4e00\u6b3e\u4e13\u4e3a1000\u5146\u4ee5\u5185\u5149\u7ea4\u5bb6\u5ead\u8bbe\u8ba1\u7684\u53cc\u5343\u5146\u65e0\u7ebf\u8def\u7531\u5668\uff0c\u652f\u6301IPv6\u534f\u8bae\uff0c\u5177\u5907\u667a\u80fd\u7f51\u7edc\u7ba1\u7406\u529f\u80fd\u3002\n\nTenda AC8\u5b58\u5728\u8d8a\u754c\u5199\u5165\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5b58\u5728sscanf\u95ee\u9898\uff0cs8\u7684\u6700\u540e\u4e00\u4f4d\u88abx0\u8986\u76d6\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u6267\u884cset_client_qos\u540e\u53ef\u83b7\u5f97\u5bf9gp\u5bc4\u5b58\u5668\u7684\u63a7\u5236\u6743\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.tenda.com.cn/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2025-24489",
  "openTime": "2025-10-22",
  "products": {
    "product": [
      "Tenda AC8 4",
      "Tenda AC8 16.03.34.09"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2023-48194",
  "serverity": "\u9ad8",
  "submitTime": "2024-07-19",
  "title": "Tenda AC8\u8d8a\u754c\u5199\u5165\u6f0f\u6d1e"
}

CVE-2023-48194 (GCVE-0-2023-48194)

Vulnerability from cvelistv5 – Published: 2024-07-09 00:00 – Updated: 2026-07-09 00:29

Summary

Vulnerability in Tenda AC8v4 .V16.03.34.09 due to sscanf and the last digit of s8 being overwritten with \x0. After executing set_client_qos, control over the gp register can be obtained.

Severity

6.3 (Medium)


                        
                          CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-07-10 14:56 UTC

CWE

n/a
CWE-787 - Out-of-bounds Write

Assigner

mitre mitre root

References

2 references

URL	Tags
https://github.com/zt20xx/CVE-2023-48194
https://www.tenda.com.cn/download/detail-3683.html

Impacted products

1 product

Vendor	Product	Version
tenda	ac8_firmware	Affected: 16.03.34.09 cpe:2.3:a:tenda:ac8_firmware:16.03.34.09:::::::*

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JSON

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{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:a:tenda:ac8_firmware:16.03.34.09:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "ac8_firmware",
            "vendor": "tenda",
            "versions": [
              {
                "status": "affected",
                "version": "16.03.34.09"
              }
            ]
          }
        ],
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "ADJACENT_NETWORK",
              "availabilityImpact": "LOW",
              "baseScore": 6.3,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "LOW",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2023-48194",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-07-10T14:56:58.589839Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-787",
                "description": "CWE-787 Out-of-bounds Write",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-07-10T15:07:07.851Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2026-07-09T00:29:08.091Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/zt20xx/CVE-2023-48194"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Vulnerability in Tenda AC8v4 .V16.03.34.09 due to sscanf and the last digit of s8 being overwritten with \\x0. After executing set_client_qos, control over the gp register can be obtained."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-05T00:48:23.880Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://github.com/zt20xx/CVE-2023-48194"
        },
        {
          "url": "https://www.tenda.com.cn/download/detail-3683.html"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2023-48194",
    "datePublished": "2024-07-09T00:00:00.000Z",
    "dateReserved": "2023-11-13T00:00:00.000Z",
    "dateUpdated": "2026-07-09T00:29:08.091Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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Confirmed: The vulnerability has been validated from an analyst's perspective.
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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.

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.
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CNVD-2025-24489

CVE-2023-48194 (GCVE-0-2023-48194)

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