CVE-2026-51742
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（固件版本 4.1.5cu.748_B20211015）中， 函数的访问控制存在缺陷，允许未认证的访问者通过向 发送特制的 POST 请求来触发 WAN 发现逻辑。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-51742
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Incorrect access control in the discoverWan function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to trigger WAN discovery logic via sending a crafted POST request to /cgi-bin/cstecgi.cgi.
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
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | n/a | n/a | - |
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II. Public POCs for CVE-2026-51742
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Pages for CVE-2026-51742 (1)
Same Patch Batch · n/a · 2026-09-01 · 20 CVEs total
| CVE-2026-51754 | TOTOLINK T6 4.1.5 MQTT未认证访问控制漏洞 | |
| CVE-2026-51765 | TOTO LINK T6 4.1.5：MQTT间接网格信息访问控制缺陷 | |
| CVE-2026-51761 | TOTOLINK T6 4.1.5 更新LAN IP时存在访问控制缺陷 | |
| CVE-2026-51766 | TOTOLINK T6 4.1.5cu 未认证访问控制导致远程重启 | |
| CVE-2026-51760 | TOTOLINK T6 4.1.5 MQTT未认证访问控制漏洞 | |
| CVE-2026-51764 | TOTOLINK T6 4.1.5cu.748 未授权MQTT消息覆盖文件 | |
| CVE-2026-51762 | TOTOLINK T6 4.1.5 MQTT未认证访问控制缺陷 | |
| CVE-2026-51763 | TOTOLINK T6 4.1.5 MQTT未认证断连漏洞 | |
| CVE-2026-51756 | T6 4.1.5cu.748 访问控制不当导致未授权刷写 | |
| CVE-2026-51757 | TOTOLINK T6 4.1.5 MQTT固件更新鉴权缺失漏洞 | |
| CVE-2026-51745 | TOTOLINK T6 4.1.5 MQTT 未认证访问控制漏洞 | |
| CVE-2026-51752 | TOTOLINK T6 4.1.5 静态信息发送越权漏洞 | |
| CVE-2026-51750 | TOTOLINK T6 4.1.5 未认证访问控制缺陷 | |
| CVE-2026-51748 | TOTOLINK T6 4.1.5 未认证访问控制漏洞 | |
| CVE-2026-51751 | TOTOLINK T6 4.1.5 MQTT未认证访问控制缺陷 | |
| CVE-2026-51743 | TOTOLINK T6 4.1.5cu.748_B20211015 访问控制缺陷 | |
| CVE-2026-51744 | TOTOlink T6 4.1.5 未授权Mesh同步访问控制漏洞 | |
| CVE-2026-51741 | TOTOLINK T6 4.1.5cu.748 B20211015 非授权日志擦除漏洞 | |
| CVE-2026-51747 | TOTOLINK T6 4.1.5 MQTT认证绕过漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2026-51742
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