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CVE-2026-6140

9.8
CRITICALCVSS v3.1 Base Score
0.32%
LOW RiskEPSS (55th percentile)

A vulnerability was found in Totolink A7100RU 7.4cu.2313_b20191024. This impacts the function UploadFirmwareFile of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Performing a manipulation of the argument FileName results in os command injection. The attack may be initiated remotely. The exploit has been made public and could be used.

Published: 4/13/2026
Modified: 4/27/2026
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Vulnerability Summary

CVSS v3 Score

9.8CRITICAL

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

CVSS v2 Score

10

AV:N/AC:L/Au:N/C:C/I:C/A:C

EPSS Score (Exploitation Probability)

0.32%LOW Exploitation Risk
55th percentile

This vulnerability has a 0.32% probability of being exploited in the next 30 days, ranking higher than 55% of all scored CVEs.

CWE Classification

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