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.
History

Mon, 24 Nov 2025 15:45:00 +0000

Type Values Removed Values Added
First Time appeared Totolink lr1200gb Firmware
Totolink nr1800x Firmware
CPEs cpe:2.3:h:totolink:lr1200gb:-:*:*:*:*:*:*:*
cpe:2.3:h:totolink:nr1800x:-:*:*:*:*:*:*:*
cpe:2.3:o:totolink:lr1200gb_firmware:9.1.0u.6619_b20230130:*:*:*:*:*:*:*
cpe:2.3:o:totolink:nr1800x_firmware:9.1.0u.6681_b20230703:*:*:*:*:*:*:*
Vendors & Products Totolink lr1200gb Firmware
Totolink nr1800x Firmware

Fri, 14 Nov 2025 09:30:00 +0000

Type Values Removed Values Added
First Time appeared Totolink
Totolink lr1200gb
Totolink nr1800x
Vendors & Products Totolink
Totolink lr1200gb
Totolink nr1800x

Thu, 13 Nov 2025 18:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-121
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 13 Nov 2025 16:00:00 +0000

Type Values Removed Values Added
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.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2025-11-13T00:00:00.000Z

Updated: 2025-11-13T17:34:03.242Z

Reserved: 2025-09-26T00:00:00.000Z

Link: CVE-2025-60684

cve-icon Vulnrichment

Updated: 2025-11-13T17:33:57.749Z

cve-icon NVD

Status : Analyzed

Published: 2025-11-13T16:15:52.337

Modified: 2025-11-24T15:33:48.037

Link: CVE-2025-60684

cve-icon Redhat

No data.