← Vulnerability feed

Vulnerability record · CVE-2025-9533 · published 27 August 2025

CVE-2025-9533: Totolink t10 firmware improper authentication vulnerability

TTotolink · T10 Firmware

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.

5.5 CVSS 4.0 Medium EPSS 9.4% · top 4.7% CWE-287 · Improper authentication
5.5CVSS 4.0 base score, v2 7.5
9.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/aLtEr6/MY_test/blob/main/TOTOLINK/TOTOLINK%20T10%20Vulnerability.md Broken Link
https://vuldb.com/?ctiid.321552 Permissions RequiredVDB Entry
https://vuldb.com/?id.321552 Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.635941 Third Party AdvisoryVDB Entry
https://www.totolink.net/ Product
https://github.com/aLtEr6/MY_test/blob/main/TOTOLINK/TOTOLINK%20T10%20Vulnerability.md Broken Link

Track CVE-2025-9533 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2025-44655Totolink a7100ru firmware vulnerabilityIn TOTOLink A7100RU V7.4, A950RG V5.9, and T10 V5.9, the chroot_local_user option is enabled in the vsftpd.conf. This could lead to unauthorized acce…EPSS 0.34%9.8CVE-2022-25130Totolink t6 firmware command injection vulnerabilityA command injection vulnerability in the function updateWifiInfo of TOTOLINK Technology routers T6 V3_Firmware T6_V3_V4.1.5cu.748_B20211015 and T10 V…EPSS 2.2%9.8CVE-2022-25131Totolink t6 firmware command injection vulnerabilityA command injection vulnerability in the function recvSlaveCloudCheckStatus of TOTOLINK Technology routers T6 V3_Firmware T6_V3_V4.1.5cu.748_B2021101…EPSS 2.2%9.8CVE-2022-25132Totolink t6 firmware command injection vulnerabilityA command injection vulnerability in the function meshSlaveDlfw of TOTOLINK Technology router T6 V3_Firmware T6_V3_V4.1.5cu.748_B20211015 allows atta…EPSS 2.9%9.8CVE-2022-25136Totolink t6 firmware command injection vulnerabilityA command injection vulnerability in the function meshSlaveUpdate of TOTOLINK Technology routers T6 V3_Firmware T6_V3_V4.1.5cu.748_B20211015 and T10 …EPSS 2.2%9.8CVE-2022-25137Totolink t6 firmware command injection vulnerabilityA command injection vulnerability in the function recvSlaveUpgstatus of TOTOLINK Technology routers T6 V3_Firmware T6_V3_V4.1.5cu.748_B20211015 and T…EPSS 2.2%9.3CVE-2025-14964Totolink t10 firmware memory buffer overflow vulnerabilityA vulnerability has been found in TOTOLINK T10 4.1.8cu.5083_B20200521. This affects the function sprintf of the file /cgi-bin/cstecgi.cgi. Such manip…EPSS 1.0%9.3CVE-2024-8162Totolink t10 firmware hard-coded credentials vulnerabilityA vulnerability classified as critical has been found in TOTOLINK T10 AC1200 4.1.8cu.5207. Affected is an unknown function of the file /squashfs-root…EPSS 1.7%

Source: NIST National Vulnerability Database (record CVE-2025-9533), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.