CVE-2025-4271 — MEDIUM (5.3)

Vulnerability 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 Score

5.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Totolink	A720R Firmware	4.1.5cu.374
Totolink	A720R	-

Related Weaknesses (CWE)

CWE-284 CWE-200

References

https://github.com/at0de/my_vulns/blob/main/TOTOLINK/A720R/showSyslog.mdExploit
https://vuldb.com/?ctiid.307375Permissions RequiredVDB Entry
https://vuldb.com/?id.307375Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.563444Third Party AdvisoryVDB Entry
https://www.totolink.net/Product

FAQ

What is CVE-2025-4271?

CVE-2025-4271 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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 manipulat...

How severe is CVE-2025-4271?

CVE-2025-4271 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-4271?

Check the references section above for vendor advisories and patch information. Affected products include: Totolink A720R Firmware, Totolink A720R.