{"id":59449,"date":"2025-07-17T17:40:53","date_gmt":"2025-07-17T17:40:53","guid":{"rendered":""},"modified":"2025-09-10T17:20:11","modified_gmt":"2025-09-10T23:20:11","slug":"cve-2025-7419-critical-vulnerability-discovered-in-tenda-o3v2-leading-to-potential-system-compromise","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-7419-critical-vulnerability-discovered-in-tenda-o3v2-leading-to-potential-system-compromise\/","title":{"rendered":"CVE-2025-7419: Critical Vulnerability Discovered in Tenda O3V2 Leading to Potential System Compromise<\/strong>"},"content":{"rendered":"

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

A critical vulnerability has been identified in Tenda O3V2 1.0.0.12(3880), a widely used networking device. This flaw, designated as CVE-2025-7419, affects the httpd component of the system and can lead to a stack-based buffer overflow, resulting in potential system compromise or data leakage. This vulnerability is especially concerning as the exploit is already publicly disclosed and can be initiated remotely<\/a>, raising the urgency to address this vulnerability.<\/p>\n

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

CVE ID: CVE-2025-7419
\nSeverity: Critical – CVSS Severity Score 8.8
\nAttack Vector: Remote
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: Potential system<\/a> compromise or data leakage<\/p>\n

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

Product | Affected Versions<\/p>\n

Tenda O3V2 | 1.0.0.12(3880)<\/p>\n

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

The vulnerability lies in the manipulation of the ‘destIP’ argument in the fromSpeedTestSet function of \/goform\/setRateTest file. This improper input validation allows a remote attacker to trigger a stack-based buffer overflow, which can lead to arbitrary code<\/a> execution. In other words, the attacker can manipulate the system as they wish, which can lead to unauthorized<\/a> access, data leakage, or even total system compromise.<\/p>\n

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

Consider the following conceptual HTTP request exploiting this vulnerability<\/a>:<\/p>\n

POST \/goform\/setRateTest HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/x-www-form-urlencoded\ndestIP=127.0.0.1%00{malicious_shellcode}<\/code><\/pre>\n
This request sends an overly long ‘destIP’ argument filled with the attacker’s malicious shellcode to the vulnerable<\/a> endpoint. The ‘%00’ acts as a null terminator, effectively causing a buffer overflow<\/a> and making the system execute the malicious shellcode.<\/p>\n
Mitigation Guidance<\/strong><\/p>\n
Tenda should release a vendor patch to address this vulnerability<\/a>. In the meantime, users can employ a Web Application<\/a> Firewall (WAF) or Intrusion Detection System (IDS) as temporary mitigation. These tools can detect and block malicious traffic attempting to exploit this vulnerability<\/a>. Users are urged to apply the vendor patch as soon as it becomes available and regularly update their systems to protect against such vulnerabilities<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview A critical vulnerability has been identified in Tenda O3V2 1.0.0.12(3880), a widely used networking device. This flaw, designated as CVE-2025-7419, affects the httpd component of the system and can lead to a stack-based buffer overflow, resulting in potential system compromise or data leakage. This vulnerability is especially concerning as the exploit is already publicly […]<\/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":[103],"product":[104],"attack_vector":[86,80],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-59449","post","type-post","status-publish","format-standard","hentry","category-uncategorized","vendor-apache","product-apache-httpd","attack_vector-buffer-overflow","attack_vector-rce"],"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