{"id":72734,"date":"2025-09-07T22:11:37","date_gmt":"2025-09-07T22:11:37","guid":{"rendered":""},"modified":"2025-10-02T00:14:27","modified_gmt":"2025-10-02T06:14:27","slug":"cve-2025-9812-critical-buffer-overflow-vulnerability-in-tenda-ch22-1-0-0-1","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-9812-critical-buffer-overflow-vulnerability-in-tenda-ch22-1-0-0-1\/","title":{"rendered":"CVE-2025-9812: Critical Buffer Overflow Vulnerability in Tenda CH22 1.0.0.1<\/strong>"},"content":{"rendered":"

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

The cybersecurity landscape never stays the same for long, with new vulnerabilities being identified regularly. One such recent discovery is the CVE-2025-9812, a critical buffer overflow vulnerability affecting Tenda CH22 1.0.0.1. This vulnerability, due to its potential for system<\/a> compromise and data leakage, poses a significant threat to any system or organization using this version of Tenda CH22. The importance of understanding and addressing this vulnerability<\/a> cannot be overstated.<\/p>\n

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

CVE ID: CVE-2025-9812
\nSeverity: Critical (8.8\/10 on the CVSS scale)
\nAttack Vector: Network
\nPrivileges Required: Low
\nUser Interaction: None
\nImpact: Potential system compromise<\/a> or data leakage<\/p>\n

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

Product | Affected Versions<\/p>\n

Tenda CH22<\/a> | 1.0.0.1<\/p>\n

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

The vulnerability exists within the `formexeCommand` function<\/a> of the `\/goform\/exeCommand` file in the Tenda CH22 1.0.0.1. By manipulating the `cmdinput` argument, an attacker can cause a buffer overflow<\/a>. This overflow can lead<\/a> to unpredictable behavior, including potential system compromise and data leakage. This exploit has been publicly disclosed and can be performed remotely<\/a>, increasing the ease and potential scope of attacks.<\/p>\n

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

Here’s a conceptual example of how this vulnerability might be exploited via a malicious<\/a> HTTP POST request:<\/p>\n

POST \/goform\/exeCommand HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/json\n{ \"cmdinput\": \"[malicious payload causing buffer overflow]\" }<\/code><\/pre>\n
In the above example, the malicious payload is sent via the ‘cmdinput’ field in the HTTP POST request, causing a buffer overflow within the `formexeCommand` function, leading to potential<\/a> system compromise or data leakage.<\/p>\n
Mitigation Guidance<\/strong><\/p>\n
To mitigate this vulnerability, the most effective solution is to apply the vendor-provided patch, if available. If for any reason, the patch cannot be applied immediately, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation measure. These systems can be configured<\/a> to detect and block exploitation attempts, protecting the system until the patch can be applied. However, these measures are not foolproof and cannot substitute the need for patching.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview The cybersecurity landscape never stays the same for long, with new vulnerabilities being identified regularly. One such recent discovery is the CVE-2025-9812, a critical buffer overflow vulnerability affecting Tenda CH22 1.0.0.1. This vulnerability, due to its potential for system compromise and data leakage, poses a significant threat to any system or organization using this […]<\/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-72734","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