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The vulnerability of the setTelnetCfg() function in the /cgi-bin/cstecgi.cgi script of the telnet service in the mesh-system software TOTOLink T6 allows a hacker to bypass security restrictions and execute arbitrary code.

🗓️ 24 Jul 2025 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec
 bdu_fstec
🔗 bdu.fstec.ru👁 1 Views

The setTelnetCfg() vulnerability in /cgi-bin/cstecgi.cgi of TOTOLink T6 telnet service bypasses authentication via telnetEnabled and allows arbitrary code execution.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
Circl
CVE-2025-7862
20 Jul 202507:01
circl
CNNVD
TOTOLINK T6 访问控制错误漏洞
20 Jul 202500:00
cnnvd
CNVD
TOTOLINK T6 Missing Authentication Vulnerability
23 Jul 202500:00
cnvd
CVE
CVE-2025-7862
20 Jul 202502:02
cve
Cvelist
CVE-2025-7862 TOTOLINK T6 Telnet Service cstecgi.cgi setTelnetCfg missing authentication
20 Jul 202502:02
cvelist
EUVD
EUVD-2025-21986
3 Oct 202520:07
euvd
NVD
CVE-2025-7862
20 Jul 202503:15
nvd
OSV
CVE-2025-7862
20 Jul 202503:15
osv
Positive Technologies
PT-2025-30164 · Totolink · Totolink T6
17 Jul 202500:00
ptsecurity
RedhatCVE
CVE-2025-7862
22 Jul 202502:51
redhatcve
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Vulners
Node
totolinkt6Match4.1.5cu.748_b20211015

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24 Jul 2025 00:00Current
7.5High risk
Vulners AI Score7.5
CVSS 37.3
CVSS 27.5
EPSS0.00337
1