CVE-2025-60684: n/a
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.
AI Analysis
Technical Summary
CVE-2025-60684 is a stack-based buffer overflow vulnerability in the ToToLink LR1200GB (V9.1.0u.6619_B20230130) and NR1800X (V9.1.0u.6681_B20230703) router firmware. The flaw exists in the cstecgi.cgi binary's sub_42F32C function, which processes the "lang" parameter from the web interface. The parameter is used to construct Help URL strings via sprintf() into fixed-size stack buffers without proper length checks. This lack of validation can be exploited by unauthenticated attackers to overflow the buffer, potentially causing memory corruption or enabling arbitrary code execution.
Potential Impact
Successful exploitation can lead to memory corruption or arbitrary code execution on affected devices without requiring authentication. This could allow attackers to compromise the router's integrity or availability. The CVSS v3.1 base score is 6.5 (medium), reflecting network attack vector, low attack complexity, no privileges required, no user interaction, and limited confidentiality and availability impacts.
Mitigation Recommendations
No official patch or remediation information is currently available. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is released, restrict access to the router's web interface from untrusted networks to reduce exposure.
CVE-2025-60684: n/a
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.
CVSS v3.1
Score 6.5medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2025-60684 is a stack-based buffer overflow vulnerability in the ToToLink LR1200GB (V9.1.0u.6619_B20230130) and NR1800X (V9.1.0u.6681_B20230703) router firmware. The flaw exists in the cstecgi.cgi binary's sub_42F32C function, which processes the "lang" parameter from the web interface. The parameter is used to construct Help URL strings via sprintf() into fixed-size stack buffers without proper length checks. This lack of validation can be exploited by unauthenticated attackers to overflow the buffer, potentially causing memory corruption or enabling arbitrary code execution.
Potential Impact
Successful exploitation can lead to memory corruption or arbitrary code execution on affected devices without requiring authentication. This could allow attackers to compromise the router's integrity or availability. The CVSS v3.1 base score is 6.5 (medium), reflecting network attack vector, low attack complexity, no privileges required, no user interaction, and limited confidentiality and availability impacts.
Mitigation Recommendations
No official patch or remediation information is currently available. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is released, restrict access to the router's web interface from untrusted networks to reduce exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2025-09-26T00:00:00.000Z
- State
- PUBLISHED
Threat ID: 6915fe5477eaf5a84960392f
Added to database: 11/13/2025, 15:50:44 UTC
Last enriched: 07/05/2026, 21:33:20 UTC
Last updated: 09/10/2026, 19:36:51 UTC
Views: 89
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