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CVE-2026-51747

Quick assessment

Affected
n/a n/a
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

TOTOLINK T6是中国TOTOLINK公司的一款高性能网络路由器。 TOTOLINK T6 4.1.5cu.748_B20211015版本存在安全漏洞，该漏洞源于keepAlive函数存在访问控制不当，可能导致未经身份验证的攻击者通过向cs_broker组件发送特制MQTT消息，向主节点发出间接网状心跳信息。

AI Predicted 5.3 Difficulty: Moderate EPSS 0.64% · P50

Affected Version Matrix 1

VendorProduct Version RangeStatus
n/a n/a n/a affected
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I. Basic Information for CVE-2026-51747

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Incorrect access control in the keepAlive function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to emit indirect mesh heartbeat information toward the master via sending a crafted MQTT message to the cs_broker component.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
TOTOLINK T6 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TOTOLINK T6是中国TOTOLINK公司的一款高性能网络路由器。 TOTOLINK T6 4.1.5cu.748_B20211015版本存在安全漏洞，该漏洞源于keepAlive函数存在访问控制不当，可能导致未经身份验证的攻击者通过向cs_broker组件发送特制MQTT消息，向主节点发出间接网状心跳信息。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- n/a n/a -

II. Public POCs for CVE-2026-51747

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-51747

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Vendor Pages for CVE-2026-51747 (1)

Same Patch Batch · n/a · 2026-09-01 · 35 CVEs total

CVE-2026-84423 7.3 HIGH Casdoor upload-resource API resource.go missing authentication
CVE-2026-51788 Python cleverange_auth 安全漏洞
CVE-2026-51761 TOTOLINK T6 权限许可和访问控制问题漏洞
CVE-2026-51765 TOTOLINK T6 安全漏洞
CVE-2026-51768 TOTOLINK T6 安全漏洞
CVE-2026-51769 TOTOLINK T6 安全漏洞
CVE-2026-51770 TOTOLINK T6 安全漏洞
CVE-2026-51767 TOTOLINK T6 安全漏洞
CVE-2026-51934 Tenda A18 安全漏洞
CVE-2026-51766 TOTOLINK T6 权限许可和访问控制问题漏洞
CVE-2026-51956 Atlas CMMS 安全漏洞
CVE-2026-52023 Kamailio 安全漏洞
CVE-2026-52022 Kamailio 安全漏洞
CVE-2026-52131 ggml llama.cpp 安全漏洞
CVE-2026-52111 HaierKeys Fast Note Sync Service 安全漏洞
CVE-2026-52130 ggml llama.cpp 资源管理错误漏洞
CVE-2026-51974 lllyasviel Fooocus 安全漏洞
CVE-2026-52132 ggml llama.cpp 安全漏洞
CVE-2026-51760 TOTOLINK T6 安全漏洞
CVE-2026-51764 TOTOLINK T6 安全漏洞

Showing top 20 of 35 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

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Same vendor: n/a

V. Comments for CVE-2026-51747

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