Vulnerability · Published May 5, 2025 · Assigned by VulDB

CVE-2025-4269TOTOLINK A720R Log cstecgi.cgi access control

Medium 6.5

In plain English

A medium-severity improper access control in A720R from TOTOLINK. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 49% of all known vulnerabilities).

Severity (CVSS 3.1)6.5Medium

Exploit odds (30 days)0.6%top 51.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability was found in TOTOLINK A720R 4.1.5cu.374 and classified as critical. This issue affects some unknown processing of the file /cgi-bin/cstecgi.cgi of the component Log Handler. The manipulation of the argument topicurl with the input clearDiagnosisLog/clearSyslog/clearTracerouteLog leads to improper access controls. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

Affected products (as reported)

Vendor	Product	Versions
TOTOLINK	A720R	4.1.5cu.374

Weakness: CWE-284, CWE-266 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

References

VDB-307373 | TOTOLINK A720R Log cstecgi.cgi access control vdb-entry, technical-description
VDB-307373 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
Submit #563430 | TOTOLINK A720R V4.1.5cu.374 Improper Access Controls third-party-advisory
https://github.com/at0de/my_vulns/blob/main/TOTOLINK/A720R/clearDiagnosisLog.md related
https://github.com/at0de/my_vulns/blob/main/TOTOLINK/A720R/clearSyslog.md exploit
https://www.totolink.net/ product