CVE-2025-60684

Severity CVSS v4.0:

Pending analysis

Type:

CWE-121 Stack-based Buffer Overflow

Publication date:

13/11/2025

Last modified:

24/11/2025

Description

A stack buffer overflow vulnerability exists in the ToToLink LR1200GB (V9.1.0u.6619_B20230130) and NR1800X (V9.1.0u.6681_B20230703) Router firmware within the cstecgi.cgi binary (sub_42F32C function). The web interface reads the "lang" parameter and constructs Help URL strings using sprintf() into fixed-size stack buffers without proper length validation. Maliciously crafted input can overflow these buffers, potentially leading to arbitrary code execution or memory corruption, without requiring authentication.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L CVSS v3.1 Severity and Metrics:

Base Score: 6.50 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): Low
Integrity (I): None
Availability (A): Low

Base Score 3.x

6.50

Severity 3.x

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:totolink:lr1200gb_firmware:9.1.0u.6619_b20230130:::::::*
cpe:2.3:h:totolink:lr1200gb:-:::::::*
cpe:2.3:o:totolink:nr1800x_firmware:9.1.0u.6681_b20230703:::::::*
cpe:2.3:h:totolink:nr1800x:-:::::::*

To consult the complete list of CPE names with products and versions, see this page

CPE	From	Up to
cpe:2.3:o:totolink:lr1200gb_firmware:9.1.0u.6619_b20230130:::::::*
cpe:2.3:h:totolink:lr1200gb:-:::::::*
cpe:2.3:o:totolink:nr1800x_firmware:9.1.0u.6681_b20230703:::::::*
cpe:2.3:h:totolink:nr1800x:-:::::::*

CVE-2025-60684

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools