Vulnerability-Lookup

CNVD-2025-21012

Vulnerability from cnvd - Published: 2025-09-10

Title

TOTOLINK LR350 setSmsCfg函数缓冲区溢出漏洞

Description

TOTOLINK LR350是中国吉翁电子（TOTOLINK）推出的4G LTE路由器，支持将4G信号转换为有线信号，适用于家庭、办公等场景。 TOTOLINK LR350存在缓冲区溢出漏洞。该漏洞源于通过setSmsCfg函数中的参数text进行的身份验证后导致缓冲区溢出。攻击者可利用该漏洞导致远程代码执行。

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.totolink.net/

Reference

https://nvd.nist.gov/vuln/detail/CVE-2022-44254

Impacted products

Name
TOTOLINK TOTOLINK LR350 V9.3.5u.6369_B20220309

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2022-44254",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2022-44254"
    }
  },
  "description": "TOTOLINK LR350\u662f\u4e2d\u56fd\u5409\u7fc1\u7535\u5b50\uff08TOTOLINK\uff09\u63a8\u51fa\u76844G LTE\u8def\u7531\u5668\uff0c\u652f\u6301\u5c064G\u4fe1\u53f7\u8f6c\u6362\u4e3a\u6709\u7ebf\u4fe1\u53f7\uff0c\u9002\u7528\u4e8e\u5bb6\u5ead\u3001\u529e\u516c\u7b49\u573a\u666f\u3002\n\nTOTOLINK LR350\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u901a\u8fc7setSmsCfg\u51fd\u6570\u4e2d\u7684\u53c2\u6570text\u8fdb\u884c\u7684\u8eab\u4efd\u9a8c\u8bc1\u540e\u5bfc\u81f4\u7f13\u51b2\u533a\u6ea2\u51fa\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\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.totolink.net/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2025-21012",
  "openTime": "2025-09-10",
  "products": {
    "product": "TOTOLINK TOTOLINK LR350 V9.3.5u.6369_B20220309"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2022-44254",
  "serverity": "\u9ad8",
  "submitTime": "2022-11-25",
  "title": "TOTOLINK LR350 setSmsCfg\u51fd\u6570\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2022-44254 (GCVE-0-2022-44254)

Vulnerability from cvelistv5 – Published: 2022-11-23 00:00 – Updated: 2025-04-25 20:11

Summary

TOTOLINK LR350 V9.3.5u.6369_B20220309 contains a post-authentication buffer overflow via parameter text in the setSmsCfg function.

Severity

8.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-25 20:11 UTC

CWE

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

Assigner

mitre mitre root

References

1 reference

URL	Tags
https://brief-nymphea-813.notion.site/LR350-bof-s…

Show details on NVD website

JSON

To clipboard

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            "url": "https://brief-nymphea-813.notion.site/LR350-bof-setSmsCfg-fd30228720dc4119911ed0b31c7c26c7"
          }
        ],
        "title": "CVE Program Container"
      },
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              "attackVector": "NETWORK",
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              "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",
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      "references": [
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    "datePublished": "2022-11-23T00:00:00.000Z",
    "dateReserved": "2022-10-30T00:00:00.000Z",
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    "state": "PUBLISHED"
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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.

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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.