{"id":59407,"date":"2025-07-15T20:19:04","date_gmt":"2025-07-15T20:19:04","guid":{"rendered":""},"modified":"2025-10-14T11:36:37","modified_gmt":"2025-10-14T17:36:37","slug":"cve-2025-7206-critical-stack-based-buffer-overflow-vulnerability-in-d-link-dir-825-2-10","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-7206-critical-stack-based-buffer-overflow-vulnerability-in-d-link-dir-825-2-10\/","title":{"rendered":"CVE-2025-7206: Critical Stack-Based Buffer Overflow Vulnerability in D-Link DIR-825 2.10<\/strong>"},"content":{"rendered":"

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

The CVE-2025-7206 is a critical vulnerability found in the D-Link DIR-825 2.10, a popular network device. This vulnerability, if exploited, can lead to a system compromise or data leakage. The issue lies within the function sub_410DDC of the file switch_language.cgi of the component httpd. It specifically affects the argument ‘Language’, leading to a stack-based buffer<\/a> overflow. This vulnerability is particularly concerning as the exploit has been disclosed publicly and can be remotely<\/a> initiated.<\/p>\n

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

CVE ID: CVE-2025-7206
\nSeverity: Critical (CVSS score 9.8)
\nAttack Vector: Remote network<\/a>
\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

D-Link DIR-825<\/a> | 2.10<\/p>\n

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

The exploit works by manipulating the ‘Language’ argument of the function sub_410DDC in the file switch_language.cgi. This leads to a buffer overflow<\/a> condition where the stack memory is overwritten. Once the attacker successfully overflows the buffer<\/a>, they can execute arbitrary code in the context of the system. This can potentially lead to a complete system<\/a> compromise or data leakage.<\/p>\n

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

Here is a conceptual example of how the vulnerability might be exploited. This is a pseudocode example of a malicious HTTP request:<\/p>\n

POST \/switch_language.cgi HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/x-www-form-urlencoded\nLanguage=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA.......<\/code><\/pre>\n
In this example, the ‘A’s represent an overly long string used to overflow the buffer<\/a>. After the buffer is overflowed<\/a>, an attacker could replace some of these ‘A’s with malicious code that would be executed in the context of the system.<\/p>\n
Mitigation<\/strong><\/p>\n
The most effective way to mitigate this vulnerability is to apply the patch provided by the vendor. However, as D-Link DIR-825<\/a> 2.10 is no longer supported by the maintainer, users may need to seek other mitigation strategies. Using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can provide temporary mitigation. These systems can detect and block attempts to exploit this vulnerability<\/a>. However, they are not a permanent solution and cannot completely eliminate the risk. Upgrading to a supported version or product is highly recommended.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview The CVE-2025-7206 is a critical vulnerability found in the D-Link DIR-825 2.10, a popular network device. This vulnerability, if exploited, can lead to a system compromise or data leakage. The issue lies within the function sub_410DDC of the file switch_language.cgi of the component httpd. It specifically affects the argument ‘Language’, leading to a stack-based […]<\/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],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-59407","post","type-post","status-publish","format-standard","hentry","category-uncategorized","vendor-apache","product-apache-httpd","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