CVE-2026-5103

MEDIUM 6.3

Totolink A3300R cstecgi.cgi setUPnPCfg command injection

CVSS Score

6.3

EPSS Score

0.0%

EPSS Percentile

0th

A weakness has been identified in Totolink A3300R 17.0.0cu.557_b20221024. This issue affects the function setUPnPCfg of the file /cgi-bin/cstecgi.cgi. This manipulation of the argument enable causes command injection. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks.

CWE	CWE-77 CWE-74
Vendor	totolink
Product	a3300r
Published	Mar 30, 2026
Last Updated	Mar 30, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Totolink / A3300R

17.0.0cu.557_b20221024

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/354128 vuldb.com: https://vuldb.com/vuln/354128/cti vuldb.com: https://vuldb.com/submit/779140 github.com: https://github.com/LvHongW/Vuln-of-totolink_A3300R/tree/main/A3300R_enable_cmd_inject totolink.net: https://www.totolink.net/

Credits

🔍 LvHW (VulDB User)