{"id":72735,"date":"2025-09-07T23:11:52","date_gmt":"2025-09-07T23:11:52","guid":{"rendered":""},"modified":"2025-09-26T20:21:42","modified_gmt":"2025-09-27T02:21:42","slug":"cve-2025-9813-buffer-overflow-vulnerability-in-tenda-ch22-1-0-0-1","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-9813-buffer-overflow-vulnerability-in-tenda-ch22-1-0-0-1\/","title":{"rendered":"CVE-2025-9813: Buffer Overflow Vulnerability in Tenda CH22 1.0.0.1<\/strong>"},"content":{"rendered":"

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

The vulnerability identified as CVE-2025-9813 is a buffer overflow issue that affects Tenda CH22 1.0.0.1. The flaw resides in the function formSetSambaConf of the file \/goform\/SetSambaConf and can be remotely exploited. This vulnerability is of particular concern due to its high potential for system<\/a> compromise and data leakage, especially considering that the exploit is publicly available and might be used in real-world attacks.<\/p>\n

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

CVE ID: CVE-2025-9813
\nSeverity: High (8.8 CVSS score)
\nAttack Vector: Network
\nPrivileges Required: None
\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 exploit works by manipulating the argument samba_userNameSda in the function formSetSambaConf of the file \/goform\/SetSambaConf, leading to buffer<\/a> overflow. An attacker can remotely send a specially crafted request to trigger the vulnerability, leading to potential<\/a> system compromise or data leakage.<\/p>\n

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

Here is a conceptual example of how an attacker might exploit the vulnerability:<\/p>\n

POST \/goform\/SetSambaConf HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/json\n{ \"samba_userNameSda\": \"A\"*1000 } \/\/ Buffer overflow by sending a string of 'A's larger than the buffer size<\/code><\/pre>\n
This conceptual code sends an HTTP POST request to the vulnerable<\/a> endpoint, with a payload that attempts to overflow the buffer by sending an excessively long string of ‘A’s as the samba_userNameSda argument.<\/p>\n
Mitigation Measures<\/strong><\/p>\n
The recommended course of action to mitigate the risk posed by this vulnerability<\/a> is to apply the vendor patch as soon as it becomes available. In the meantime, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation strategy, detecting and blocking attempts to exploit this vulnerability<\/a>. Organizations should also consider implementing a regular patch management strategy and vulnerability<\/a> scanning to identify and remediate such vulnerabilities promptly.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview The vulnerability identified as CVE-2025-9813 is a buffer overflow issue that affects Tenda CH22 1.0.0.1. The flaw resides in the function formSetSambaConf of the file \/goform\/SetSambaConf and can be remotely exploited. This vulnerability is of particular concern due to its high potential for system compromise and data leakage, especially considering that the exploit is […]<\/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-72735","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