CVE-2025-4850: TOTOLINK N300RH cstecgi.cgi setUnloadUserData command injection

Severity: medium (CVSS 6.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-05-18 · updated 2026-06-17
Weakness: CWE-74

Description

A vulnerability classified as critical has been found in TOTOLINK N300RH 6.1c.1390_B20191101. This affects the function setUnloadUserData of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument plugin_name leads to command injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

Affected products

Totolink N300RH: 6.1c.1390_b20191101

References

https://github.com/CH13hh/tmp_store_cc/blob/main/tt/ta/m2.md
https://vuldb.com/?ctiid.309321
https://vuldb.com/?id.309321
https://vuldb.com/?submit.575073
https://www.totolink.net/

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