Vulnerability-Lookup

CNVD-2025-20154

Vulnerability from cnvd - Published: 2025-09-03

Title

Tenda AC6拒绝服务漏洞

Description

Tenda AC6是腾达（Tenda）推出的一款双频无线路由器，支持IPv4和IPv6协议，采用802.11ac/n无线标准，提供1167Mbps的无线传输速率。 Tenda AC6存在拒绝服务漏洞，该漏洞源于HTTP标头解析功能存在问题，攻击者可利用该漏洞导致拒绝服务。

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://talosintelligence.com/vulnerability_reports/TALOS-2025-2166

Impacted products

Name
['Tenda AC6 5.0', 'Tenda AC6 02.03.01.110']

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JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2025-30256",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2025-30256"
    }
  },
  "description": "Tenda AC6\u662f\u817e\u8fbe\uff08Tenda\uff09\u63a8\u51fa\u7684\u4e00\u6b3e\u53cc\u9891\u65e0\u7ebf\u8def\u7531\u5668\uff0c\u652f\u6301IPv4\u548cIPv6\u534f\u8bae\uff0c\u91c7\u7528802.11ac/n\u65e0\u7ebf\u6807\u51c6\uff0c\u63d0\u4f9b1167Mbps\u7684\u65e0\u7ebf\u4f20\u8f93\u901f\u7387\u3002\n\nTenda AC6\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eHTTP\u6807\u5934\u89e3\u6790\u529f\u80fd\u5b58\u5728\u95ee\u9898\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\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-2025-20154",
  "openTime": "2025-09-03",
  "products": {
    "product": [
      "Tenda AC6 5.0",
      "Tenda AC6 02.03.01.110"
    ]
  },
  "referenceLink": "https://talosintelligence.com/vulnerability_reports/TALOS-2025-2166",
  "serverity": "\u9ad8",
  "submitTime": "2025-08-26",
  "title": "Tenda AC6\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2025-30256 (GCVE-0-2025-30256)

Vulnerability from cvelistv5 – Published: 2025-08-20 13:09 – Updated: 2025-11-03 18:09

Summary

A denial of service vulnerability exists in the HTTP Header Parsing functionality of Tenda AC6 V5.0 V02.03.01.110. A specially crafted series of HTTP requests can lead to a reboot. An attacker can send multiple network packets to trigger this vulnerability.

Severity

8.6 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-08-20 13:52 UTC

CWE

CWE-772 - Missing Release of Resource after Effective Lifetime

Assigner

talos mitre root

References

2 references

URL	Tags
https://talosintelligence.com/vulnerability_repor…
https://www.talosintelligence.com/vulnerability_r…

Impacted products

1 product

Vendor	Product	Version
Tenda	AC6 V5.0	Affected: V02.03.01.110

Credits

Discovered by Lilith >_> of Cisco Talos.

Show details on NVD website

JSON

To clipboard

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            "confidentialityImpact": "NONE",
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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.