High severity · published Jun 9, 2025
CVE-2025-5901
A vulnerability has been found in TOTOLINK T10 4.1.8cu.5207 and classified as critical
8.8
CVSS
6.4%
EPSS
No
On KEV
Description
A vulnerability has been found in TOTOLINK T10 4.1.8cu.5207 and classified as critical. This vulnerability affects the function UploadCustomModule of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. The manipulation of the argument File leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)6.4% · higher than 94% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TF
T10 Firmware · Totolink
4.1.8cu.5207 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-5901
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-5901
Exploit
https://candle-throne-f75.notion.site/TOTOLINK-T10-UploadCustomModule-20bdf0aa118580d59961cd545582c118
Permissions Required
https://vuldb.com/?ctiid.311674
Third Party Advisory
https://vuldb.com/?id.311674
Third Party Advisory
https://vuldb.com/?submit.592243
Product
https://www.totolink.net/
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