Critical severity · published Aug 27, 2025
CVE-2025-9533
TOTOLINK T10 formLoginAuth.htm improper authentication
9.8
CVSS
12.2%
EPSS
No
On KEV
Description
A vulnerability has been found in TOTOLINK T10 4.1.8cu.5241_B20210927. Affected is an unknown function of the file /formLoginAuth.htm. The manipulation of the argument authCode with the input 1 leads to improper authentication. 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:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)12.2% · higher than 96% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
T1
T10 · TOTOLINK
4.1.8cu.5241_B20210927 · source: vendor
TF
T10 Firmware · Totolink
4.1.8cu.5241_b20210927 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-9533
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-9533
Broken Link
https://github.com/aLtEr6/MY_test/blob/main/TOTOLINK/TOTOLINK%20T10%20Vulnerability.md
Permissions Required
https://vuldb.com/?ctiid.321552
Third Party Advisory
https://vuldb.com/?id.321552
Third Party Advisory
https://vuldb.com/?submit.635941
Product
https://www.totolink.net/