What’s Vulnerable › Vulnerabilities

CVE-2025-4271: TOTOLINK A720R cstecgi.cgi information disclosure

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% 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 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.

Affected products

• TOTOLINK A720R: 4.1.5cu.374

References

• https://github.com/at0de/my_vulns/blob/main/TOTOLINK/A720R/showSyslog.md
• https://vuldb.com/?ctiid.307375
• https://vuldb.com/?id.307375
• https://vuldb.com/?submit.563444
• https://www.totolink.net/

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