Medium severity · published May 5, 2025
CVE-2025-4271
TOTOLINK A720R cstecgi.cgi information disclosure
5.3
CVSS
0.7%
EPSS
No
On KEV
Description
A vulnerability was found in TOTOLINK A720R 4.1.5cu.374. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument topicurl with the input showSyslog leads to information disclosure. The attack can be launched 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:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
A7
A720R · TOTOLINK
4.1.5cu.374 · source: vendor
AF
A720r Firmware · Totolink
4.1.5cu.374 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-4271
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-4271
Exploit
https://github.com/at0de/my_vulns/blob/main/TOTOLINK/A720R/showSyslog.md
Permissions Required
https://vuldb.com/?ctiid.307375
Third Party Advisory
https://vuldb.com/?id.307375
Third Party Advisory
https://vuldb.com/?submit.563444
Product
https://www.totolink.net/
More from A720R
9.8
CVE-2025-9303
TOTOLINK A720R cstecgi.cgi setParentalRules buffer overflow
8.1
CVE-2024-8869
TOTOLINK A720R exportOvpn os command injection
7.5
CVE-2025-4270
TOTOLINK A720R Config cstecgi.cgi information disclosure
5.3
CVE-2025-4269
TOTOLINK A720R Log cstecgi.cgi access control
5.3
CVE-2025-4268
TOTOLINK A720R cstecgi.cgi missing authentication