Information disclosure in Totolink A720r
CVE-2025-4271
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.
Vulnerability class: Information Disclosure
EPSS: 0.006 (44.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Totolink A720r — versions 4.1.5cu.374
- Totolink A720r_firmware — versions 4.1.5cu.374
Weakness classification (CWE)
References
- cna@vuldb.com (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- cna@vuldb.com (signature, Permissions Required, permissions-required, VDB Entry)
- cna@vuldb.com (VDB Entry, Third Party Advisory, third-party-advisory)
- cna@vuldb.com (Exploit, exploit)
- cna@vuldb.com (Product, product)
Frequently asked questions
- What is CVE-2025-4271?
- CVE-2025-4271 is a medium-severity vulnerability in Totolink A720r, classified under Information Disclosure. CVSS score: 5.3/10. Published 2025-05-05.
- How severe is CVE-2025-4271?
- Medium severity. CVSS v3 base score is 5.3 out of 10.