CVE-2025-4270: TOTOLINK A720R Config cstecgi.cgi information disclosure

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 14.0% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-05-05 · updated 2026-06-17
Weakness: CWE-200

Description

A vulnerability was found in TOTOLINK A720R 4.1.5cu.374. It has been classified as problematic. Affected is an unknown function of the file /cgi-bin/cstecgi.cgi of the component Config Handler. The manipulation of the argument topicurl with the input getInitCfg/getSysStatusCfg leads to information disclosure. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

Affected products

TOTOLINK A720R: 4.1.5cu.374

References

https://github.com/at0de/my_vulns/blob/main/TOTOLINK/A720R/getInitCfg.md
https://github.com/at0de/my_vulns/blob/main/TOTOLINK/A720R/getSysStatusCfg.md
https://vuldb.com/?ctiid.307374
https://vuldb.com/?id.307374
https://vuldb.com/?submit.563442
https://www.totolink.net/

Get alerted when CVE-2025-4270 or the next vulnerability affects your stack