Critical severity · published Jan 9, 2024
CVE-2023-7221
A vulnerability was found in Totolink T6 4.1.9cu.5241_B20210923
9.8
CVSS
1.5%
EPSS
No
On KEV
Description
A vulnerability was found in Totolink T6 4.1.9cu.5241_B20210923. It has been classified as critical. This affects the function main of the file /cgi-bin/cstecgi.cgi?action=login of the component HTTP POST Request Handler. The manipulation of the argument v41 leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-249855. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
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)1.5% · higher than 74% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TF
T6 Firmware · Totolink
4.1.9cu.5241_b20210923 · source: NVD
Affected product
TF
T6 Firmware
Totolink
More from T6 Firmware
9.8
CVE-2025-7862
TOTOLINK T6 Telnet Service cstecgi.cgi setTelnetCfg missing authentication
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
9.8
CVE-2022-38823
In TOTOLINK T6 V4.1.5cu.709_B20210518, there is a hard coded password for root in /etc/shadow.sample