PT-2025-29975 · Totolink · Totolink T6

Reisen_1943 · Published 2025-07-14 · Updated 2025-07-24 · CVE-2025-7758

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions TOTOLINK T6 versions prior to 4.1.5cu.748 B20211015

Description A critical vulnerability exists in the TOTOLINK T6 router. This issue affects the setDiagnosisCfg function within the /cgi-bin/cstecgi.cgi file of the HTTP POST Request Handler component. Manipulation of the ip argument can lead to a buffer overflow, potentially allowing for remote code execution. The exploit for this vulnerability has been publicly disclosed.

Recommendations TOTOLINK T6 versions prior to 4.1.5cu.748 B20211015: Update to version 4.1.5cu.748 B20211015 or a later version to resolve this issue.

Exploit

Fix

Buffer Overflow

Weakness Enumeration

CWE-119

CWE-120

Related Identifiers

BDU:2025-08852

CVE-2025-7758

Affected Products

Totolink T6

References · 16

• 🔥 https://github.com/AnduinBrian/Public/blob/main/Totolink%20T6/Vuln/3.md · Exploit
• 🔥 https://github.com/AnduinBrian/Public/blob/main/Totolink%20T6/Vuln/3.md#poc · Exploit
• https://bdu.fstec.ru/vul/2025-08852 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-7758 · Security Note
• https://osv.dev/vulnerability/CVE-2025-7758 · Vendor Advisory
• https://t.me/cvetracker/28086 · Telegram Post
• https://totolink.net · Note
• https://t.me/cvenotify/129793 · Telegram Post
• https://twitter.com/dailycve/status/1948376401813336514 · Twitter Post
• https://vuldb.com/?ctiid.316748 · Note
• https://vuldb.com/?id.316748 · Note
• https://twitter.com/CVEnew/status/1945960300223631517 · Twitter Post
• https://twitter.com/CveFindCom/status/1945961920319705237 · Twitter Post
• https://twitter.com/VulmonFeeds/status/1946055310323409314 · Twitter Post
• https://t.me/cveNotify/129793 · Telegram Post