CVE-2026-5103

moderate-risk
Published 2026-03-30

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.

Do I need to act?

~
2.2% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.3/10 Medium
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Totolink

References (5)

Exploit https://github.com/LvHongW/Vuln-of-totolink_A3300R/tree/main/A3300R_enable_cmd_i...
Permissions Required https://vuldb.com/submit/779140
Third Party Advisory https://vuldb.com/vuln/354128
Third Party Advisory https://vuldb.com/vuln/354128/cti
Product https://www.totolink.net/
33
/ 100
moderate-risk
Severity 23/34 · High
Exploitability 5/34 · Minimal
Exposure 5/34 · Minimal