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CVE-2026-5103 - Vulnerability Analysis

MediumCVSS: 6.3

Last Updated: March 30, 2026

Totolink A3300R - Command Injection

Published: March 30, 2026Updated: March 30, 2026PoC AvailableRemote Exploitable

Overview

Totolink A3300R 17.0.0cu.557_b20221024 contains a command injection caused by manipulation of the "enable" argument in setUPnPCfg function of /cgi-bin/cstecgi.cgi, letting remote attackers execute arbitrary commands, exploit requires no special privileges.

Severity & Score

Severity: Medium

CVSS Score: 6.3

EPSS Score: 216.4%(Probability of exploitation in next 30 days)

Impact

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

Mitigation

Update to the latest version.

References

Social Media Activity(1 post)

ZEN SecDB

@secdb

Apr 6, 2026

📈 CVE Published in last 7 days (2026-03-30 - 2026-04-06) See more at https://secdb.nttzen.cloud/dashboard Total CVEs: 1282 Severity: - Critical: 134 - High: 375 - Medium: 561 - Low: 63 - None: 149 Status: - : 54 - Analyzed: 257 - Awaiting Analysis: 410 - Modified: 9 - Received: 265 - Rejected: 7 - Undergoing Analysis: 280 Top CNAs: - GitHub, Inc.: 374 - VulDB: 165 - VulnCheck: 147 - MITRE: 109 - kernel.org: 91 - N/A: 54 - Wordfence: 43 - Chrome: 21 - IBM Corporation: 17 - Cisco Systems, Inc.: 16 Top Affected Products: - UNKNOWN: 933 - Endian Firewall: 30 - Openclaw: 24 - Google Chrome: 21 - Seppmail Secure Email Gateway: 14 - Apple Macos: 13 - Wwbn Avideo: 13 - Ahsanriaz26gmailcom Sales And Inventory System: 11 - Xenforo: 10 - Parseplatform Parse-server: 9 Top EPSS Score: - CVE-2026-4257 - 15.83 % (https://secdb.nttzen.cloud/cve/detail/CVE-2026-4257) - CVE-2026-34156 - 5.19 % (https://secdb.nttzen.cloud/cve/detail/CVE-2026-34156) - CVE-2026-4020 - 4.49 % (https://secdb.nttzen.cloud/cve/detail/CVE-2026-4020) - CVE-2026-5281 - 3.03 % (https://secdb.nttzen.cloud/cve/detail/CVE-2026-5281) - CVE-2026-5176 - 2.96 % (https://secdb.nttzen.cloud/cve/detail/CVE-2026-5176) - CVE-2026-34453 - 2.67 % (https://secdb.nttzen.cloud/cve/detail/CVE-2026-34453) - CVE-2026-5102 - 1.63 % (https://secdb.nttzen.cloud/cve/detail/CVE-2026-5102) - CVE-2026-5103 - 1.63 % (https://secdb.nttzen.cloud/cve/detail/CVE-2026-5103) - CVE-2026-5104 - 1.63 % (https://secdb.nttzen.cloud/cve/detail/CVE-2026-5104) - CVE-2026-5105 - 1.63 % (https://secdb.nttzen.cloud/cve/detail/CVE-2026-5105)

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Details

CVE ID: CVE-2026-5103
Severity: Medium
CVSS Score: 6.3
Type: command_injection
Status: confirmed
EPSS: 216.4%
Social Posts: 1

CWE

CWE-74
CWE-77

CVSS Metrics

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

EPSS Score

216.4%Probability of exploitation in the next 30 days