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CVE-2026-5102 - 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 argument qos_up_bw in setSmartQosCfg function of /cgi-bin/cstecgi.cgi Parameter Handler, letting remote attackers execute arbitrary commands, exploit requires no special privileges.

Severity & Score

Severity: Medium

CVSS Score: 6.3

Impact

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

Mitigation

Update to the latest version.

References

https://github.com/Litengzheng/vul_db/blob/main/A3300R/vul_40/README.md
https://vuldb.com/submit/779129
https://vuldb.com/vuln/354127
https://vuldb.com/vuln/354127/cti
https://www.totolink.net/

Related Resources

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Details

CVE ID: CVE-2026-5102
Severity: Medium
CVSS Score: 6.3
Type: command_injection
Status: confirmed

CWE

CWE-74

CVSS Metrics

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