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CVE-2026-6139 - Vulnerability Analysis

CriticalCVSS: 9.8

Last Updated: April 13, 2026

Totolink A7100RU - Command Injection

Published: April 13, 2026Updated: April 13, 2026Remote Exploitable

Overview

Totolink A7100RU 7.4cu.2313_b20191024 contains a command injection caused by manipulation of the "FileName" argument in /cgi-bin/cstecgi.cgi UploadOpenVpnCert function, letting remote attackers execute arbitrary OS commands, exploit requires no special privileges.

Severity & Score

Severity: Critical

CVSS Score: 9.8

EPSS Score: 125.4%(Probability of exploitation in next 30 days)

Impact

Remote attackers can execute arbitrary OS commands, potentially leading to full system compromise.

Mitigation

Update to the latest version.

References

Social Media Activity(1 post)

ZEN SecDB

@secdb

Apr 20, 2026

📈 CVE Published in last 7 days (2026-04-13 - 2026-04-20) See more at https://secdb.nttzen.cloud/dashboard Total CVEs: 1192 Severity: - Critical: 104 - High: 477 - Medium: 485 - Low: 67 - None: 59 Status: - : 27 - Analyzed: 155 - Awaiting Analysis: 421 - Deferred: 72 - Received: 270 - Rejected: 6 - Undergoing Analysis: 241 Top CNAs: - GitHub, Inc.: 234 - Microsoft Corporation: 163 - MITRE: 116 - Wordfence: 100 - VulDB: 77 - Adobe Systems Incorporated: 53 - Chrome: 31 - N/A: 27 - Fortinet, Inc.: 27 - VulnCheck: 23 Top Affected Products: - UNKNOWN: 856 - Microsoft Windows Server 2025: 121 - Microsoft Windows 11 24h2: 118 - Microsoft Windows 11 26h1: 117 - Microsoft Windows 11 25h2: 114 - Microsoft Windows Server 2022: 114 - Microsoft Windows 11 23h2: 113 - Microsoft Windows Server 23h2: 108 - Microsoft Windows 10 21h2: 105 - Microsoft Windows 10 22h2: 105 Top EPSS Score: - CVE-2026-6158 - 2.96 % (https://secdb.nttzen.cloud/cve/detail/CVE-2026-6158) - CVE-2026-27303 - 1.50 % (https://secdb.nttzen.cloud/cve/detail/CVE-2026-27303) - CVE-2026-34615 - 1.44 % (https://secdb.nttzen.cloud/cve/detail/CVE-2026-34615) - CVE-2026-6203 - 1.19 % (https://secdb.nttzen.cloud/cve/detail/CVE-2026-6203) - CVE-2026-6349 - 0.95 % (https://secdb.nttzen.cloud/cve/detail/CVE-2026-6349) - CVE-2026-6141 - 0.92 % (https://secdb.nttzen.cloud/cve/detail/CVE-2026-6141) - CVE-2026-6138 - 0.89 % (https://secdb.nttzen.cloud/cve/detail/CVE-2026-6138) - CVE-2026-6139 - 0.89 % (https://secdb.nttzen.cloud/cve/detail/CVE-2026-6139) - CVE-2026-6140 - 0.89 % (https://secdb.nttzen.cloud/cve/detail/CVE-2026-6140) - CVE-2026-6154 - 0.89 % (https://secdb.nttzen.cloud/cve/detail/CVE-2026-6154)

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Details

CVE ID: CVE-2026-6139
Severity: Critical
CVSS Score: 9.8
Type: command_injection
Status: unconfirmed
EPSS: 125.4%
Social Posts: 1

CWE

CWE-77

CVSS Metrics

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

EPSS Score

125.4%Probability of exploitation in the next 30 days