SecuriTricks - CVE-2025-60688

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 (setDefResponse function). The binary reads the "IpAddress" parameter from a web request and copies it into a fixed-size stack buffer using strcpy() without any length validation. Maliciously crafted input can overflow the buffer, leading to potential arbitrary code execution or memory corruption, without requiring authentication.

Product(s) Impacted

Vendor	Product	Versions
Totolink	Lr1200gb Firmware Lr1200gb Nr1800x Firmware Nr1800x	9.1.0u.6619_b20230130 - 9.1.0u.6681_b20230703 -

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-121

Stack-based Buffer Overflow

A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
o	totolink	lr1200gb_firmware	9.1.0u.6619_b20230130	/	/	/	/	/	/	/
h	totolink	lr1200gb	-	/	/	/	/	/	/	/
o	totolink	nr1800x_firmware	9.1.0u.6681_b20230703	/	/	/	/	/	/	/
h	totolink	nr1800x	-	/	/	/	/	/	/	/

References

http://totolink.com

https://github.com/yifan20020708/SGTaint-0-day/blob/main/ToToLink/ToToLink-LR1200GB/CVE-2025-60688.md

https://www.totolink.net/

CVSS Score

6.5 / 10

CVSS Data - 3.1

Attack Vector: NETWORK
Attack Complexity: LOW
Privileges Required: NONE
Scope: UNCHANGED
Confidentiality Impact: LOW
Integrity Impact: NONE
Availability Impact: LOW

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

View Vector String

Timeline

Published: Nov. 13, 2025, 4:15 p.m.
Last Modified: Nov. 19, 2025, 5:33 p.m.

Status : Analyzed

CVE has had analysis completed and all data associations made.

More info

Source

cve@mitre.org

CVE-2025-60688