CVE-2025-4271

6.9 mediumEPSS 0.7%

Medium (6.9) in totolink a720r firmware. EPSS 0.7% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

6.9 medium

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

5.3 medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS: 0.7% chance of exploitation in the next 30 days; higher than 51% of CVEs (scores of 2026-10-31)
CWEs: CWE-200, CWE-284
Published: 2025-05-05
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

totolink:a720r_firmware

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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