{"id":38378,"date":"2025-05-15T15:00:19","date_gmt":"2025-05-15T15:00:19","guid":{"rendered":""},"modified":"2025-05-23T11:18:19","modified_gmt":"2025-05-23T11:18:19","slug":"cve-2025-3711-critical-stack-based-buffer-overflow-vulnerability-in-lcd-kvm-over-ip-switch-cl5708im","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-3711-critical-stack-based-buffer-overflow-vulnerability-in-lcd-kvm-over-ip-switch-cl5708im\/","title":{"rendered":"CVE-2025-3711: Critical Stack-based Buffer Overflow Vulnerability in LCD KVM over IP Switch CL5708IM<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

CVE-2025-3711 is a severe cybersecurity vulnerability that affects the LCD KVM over IP Switch CL5708IM. This vulnerability, a stack-based buffer overflow, exposes the system to unauthenticated remote attackers, allowing them to execute arbitrary code on the device. Given the ubiquity of KVM switches in data centers and IT environments, this vulnerability has far-reaching implications for data integrity and system<\/a> stability.
\nThe critical nature of this vulnerability<\/a>, reflected in its CVSS severity score of 9.8, indicates a significant risk of system compromise or data leakage. It’s crucial for organizations using the affected device to understand and address this vulnerability promptly to protect their systems<\/a> and data.<\/p>\n

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2025-3711
\nSeverity: Critical (CVSS: 9.8)
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: System compromise<\/a>, potential data leakage<\/p>\n

Affected Products<\/strong><\/p>\n

Product | Affected Versions<\/p>\n

LCD KVM over IP Switch<\/a> CL5708IM | All versions prior to the latest patch<\/p>\n

How the Exploit Works<\/strong><\/p>\n

A stack-based buffer overflow<\/a>, like the one present in CVE-2025-3711, occurs when more data is written into a buffer than it can handle. This overflow can overwrite adjacent memory locations, often leading to erratic program behavior, crashes, or, in more severe cases, the execution of malicious code<\/a>.
\nIn the case of CVE-2025-3711, an unauthenticated remote attacker can send specially crafted network packets to the vulnerable device, causing the buffer overflow<\/a>. This allows the attacker to manipulate the stack and inject their own malicious code<\/a>, thereby gaining control over the device.<\/p>\n

Conceptual Example Code<\/strong><\/p>\n

Below is a conceptual example of how the vulnerability might be exploited:<\/p>\n

POST \/vulnerable\/endpoint HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/json\n{ \"malicious_payload\": \"AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\" }<\/code><\/pre>\n
In this example, the ‘A’s represent an overflow of data that the buffer cannot handle, causing it to overflow and potentially enabling the attacker to execute arbitrary code<\/a>.<\/p>\n
Mitigation Guidance<\/strong><\/p>\n
The most effective way to mitigate this vulnerability is to apply the vendor patch as soon as it becomes available. This will fix the buffer overflow vulnerability<\/a> and prevent potential exploits.
\nIn the meantime, or if patching is not immediately possible, it is recommended to use Web Application Firewalls (WAF) or Intrusion Detection Systems (IDS) to monitor network traffic for signs of exploitation of this vulnerability<\/a>. These tools can provide temporary protection by blocking malicious traffic or alerting system administrators of potential<\/a> attacks.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview CVE-2025-3711 is a severe cybersecurity vulnerability that affects the LCD KVM over IP Switch CL5708IM. This vulnerability, a stack-based buffer overflow, exposes the system to unauthenticated remote attackers, allowing them to execute arbitrary code on the device. Given the ubiquity of KVM switches in data centers and IT environments, this vulnerability has far-reaching implications […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[1],"tags":[],"vendor":[],"product":[],"attack_vector":[86],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-38378","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-buffer-overflow"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t