Home/CVE/A vulnerability has been found in TOTOLINK T10 4.1.8cu.5241_B20210927. Affected is an unknown function of the file /form
CVE

CVE-2025-9533

A vulnerability has been found in TOTOLINK T10 4.1.8cu.5241_B20210927. Affected is an unknown function of the file /form

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.

HIGH · CVSS 7.3 EPSS 0.00307
Schedule remediation
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-287Improper Authentication
▤

Affected Products & Versions

1
totolink t10 firmwareall versions
◈

Detection Rules (IDS/IPS)

1
et-openET WEB_SPECIFIC_APPS Totolink formLoginAuth.htm authCode Parameter Authentication Bypass Attempt (CVE-2025-9533)attempted-admin
Open rulesets (ET Open, Snort Community, abuse.ch) link to source. Commercial rulesets are reference-only.
▣

Scoring & Timeline

7.3
HIGH · CVSS v3.1 · cna@vuldb.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD27 Aug 2025 · 03:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/aLtEr6/MY_test/blob/main/TOTOLINK/TOTOLINKBroken Link
https://vuldb.com/?ctiid.321552Permissions RequiredVDB Entry
https://vuldb.com/?id.321552Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.635941Third Party AdvisoryVDB Entry
https://www.totolink.net/Product
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