PT-2025-19370 · Totolink · Totolink A720R

153528990 · Published 2025-05-05 · Updated 2025-05-05 · CVE-2025-4271

Positive Technologies (AI Summary)

CVSS v4.0

6.9

Medium

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Name of the Vulnerable Software and Affected Versions TOTOLINK A720R version 4.1.5cu.374

Description A vulnerability was found in the TOTOLINK A720R, affecting an unknown functionality of the file /cgi-bin/cstecgi.cgi. The manipulation of the topicurl argument 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.

Recommendations As a temporary workaround, consider restricting access to the /cgi-bin/cstecgi.cgi file until a patch is available. Avoid using the topicurl argument with the input showSyslog in the affected API endpoint until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Improper Access Control

Information Disclosure

Weakness Enumeration

CWE-284

CWE-200

Related Identifiers

BDU:2025-05810

CVE-2025-4271

Affected Products

Totolink A720R

References · 13

• 🔥 https://github.com/at0de/my_vulns/blob/main/TOTOLINK/A720R/showSyslog.md · Exploit
• https://bdu.fstec.ru/vul/2025-05810 · Security Note
• https://osv.dev/vulnerability/CVE-2025-4271 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-4271 · Security Note
• https://vuldb.com/?id.307375 · Note
• https://t.me/cvedetector/24446 · Telegram Post
• https://totolink.net · Note
• https://vuldb.com/?ctiid.307375 · Note
• https://twitter.com/cybercronai/status/1919380572431950163 · Twitter Post
• https://twitter.com/CVEnew/status/1919306444609835197 · Twitter Post
• https://vuldb.com/?submit.563444 · Note
• https://t.me/cvenotify/120778 · Telegram Post
• https://t.me/cvetracker/23038 · Telegram Post