High severity · published Jul 13, 2025
CVE-2025-7525
A vulnerability was found in TOTOLINK T6 4.1.5cu.748_B20211015
8.8
CVSS
2.8%
EPSS
No
On KEV
Description
A vulnerability was found in TOTOLINK T6 4.1.5cu.748_B20211015. It has been declared as critical. This vulnerability affects the function setTracerouteCfg of the file /cgi-bin/cstecgi.cgi of the component HTTP POST Request Handler. The manipulation of the argument command leads to command injection. 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)2.8% · higher than 87% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TF
T6 Firmware · Totolink
v4.1.5cu.748_b20211015 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-7525
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-7525
Exploit
https://github.com/ElvisBlue/Public/blob/main/Vuln/3.md
Exploit
https://github.com/ElvisBlue/Public/blob/main/Vuln/3.md#poc
Permissions Required
https://vuldb.com/?ctiid.316222
Third Party Advisory
https://vuldb.com/?id.316222
Third Party Advisory
https://vuldb.com/?submit.612936
Product
https://www.totolink.net/
More from T6 Firmware
9.8
CVE-2025-7862
A vulnerability has been found in TOTOLINK T6 4.1.5cu.748_B20211015 and classified as critical
9.8
CVE-2023-7221
A vulnerability was found in Totolink T6 4.1.9cu.5241_B20210923
9.8
CVE-2022-38828
TOTOLINK T6 V4.1.5cu.709_B20210518 is vulnerable to command injection via cstecgi.cgi
9.8
CVE-2022-38827
TOTOLINK T6 V4.1.5cu.709_B20210518 is vulnerable to Buffer Overflow via cstecgi.cgi
9.8
CVE-2022-38826
In TOTOLINK T6 V4.1.5cu.709_B20210518, there is an execute arbitrary command in cstecgi.cgi