CVE-2025-5600 — CRITICAL (9.8)

Vulnerability Description

A vulnerability, which was classified as critical, has been found in TOTOLINK EX1200T 4.1.2cu.5232_B20210713. This issue affects the function setLanguageCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument LangType leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

CVSS Score

9.8

CRITICAL

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Totolink	Ex1200T Firmware	4.1.2cu.5232_b20210713
Totolink	Ex1200T	-

Related Weaknesses (CWE)

CWE-121 CWE-119 CWE-787

References

https://kn0sinna.notion.site/TOTOLINK-EX1200T-stack-based-BufferOverflow-vulneraExploitThird Party Advisory
https://vuldb.com/?ctiid.311087Permissions Required
https://vuldb.com/?id.311087Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.588075Third Party AdvisoryVDB Entry
https://www.totolink.net/Product
https://kn0sinna.notion.site/TOTOLINK-EX1200T-stack-based-BufferOverflow-vulneraExploitThird Party Advisory

FAQ

What is CVE-2025-5600?

CVE-2025-5600 is a vulnerability with a CVSS score of 9.8 (CRITICAL). A vulnerability, which was classified as critical, has been found in TOTOLINK EX1200T 4.1.2cu.5232_B20210713. This issue affects the function setLanguageCfg of the file /cgi-bin/cstecgi.cgi. The manip...

How severe is CVE-2025-5600?

CVE-2025-5600 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2025-5600?

Check the references section above for vendor advisories and patch information. Affected products include: Totolink Ex1200T Firmware, Totolink Ex1200T.