Privilege escalation in Totolink A720r
CVE-2025-4269
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L.
EPSS exploit prediction
EPSS: 0.006 (44.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 44.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Totolink A720r — versions 4.1.5cu.374
- Totolink A720r Firmware — versions 4.1.5cu.374
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
- github.com/at0de/my_vulns/blob/main/TOTOLINK/A720R/clearDiagnosisLog.md (related, Exploit)
- github.com/at0de/my_vulns/blob/main/TOTOLINK/A720R/clearSyslog.md (Exploit, exploit)
- www.totolink.net/ (Product, product)
Frequently asked questions
- What is CVE-2025-4269?
- CVE-2025-4269 is a medium-severity vulnerability in Totolink A720r, classified under Incorrect Privilege Assignment. CVSS score: 6.5/10. Published 2025-05-05.
- How severe is CVE-2025-4269?
- Medium severity. CVSS v3 base score is 6.5 out of 10.