{"id":33547,"date":"2025-04-29T11:56:57","date_gmt":"2025-04-29T11:56:57","guid":{"rendered":""},"modified":"2025-10-02T23:37:13","modified_gmt":"2025-10-03T05:37:13","slug":"cve-2025-45427-critical-stack-overflow-vulnerability-in-tenda-ac9-v1-0-firmware","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-45427-critical-stack-overflow-vulnerability-in-tenda-ac9-v1-0-firmware\/","title":{"rendered":"CVE-2025-45427: Critical Stack Overflow Vulnerability in Tenda AC9 v1.0 Firmware<\/strong>"},"content":{"rendered":"

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

The cybersecurity community has identified a critical vulnerability in the firmware version V15.03.05.14_multi of Tenda AC9 v1.0. Known as CVE-2025-45427, this vulnerability can lead to remote arbitrary code execution due to a stack overflow error in the security parameter of \/goform\/WifiBasicSet. As a cybersecurity expert<\/a>, it’s important to understand the nature of this vulnerability, its implications, and the mitigation measures that can be implemented to safeguard against potential exploits. This vulnerability poses a serious threat to users due to its potential for system compromise and data<\/a> leakage.<\/p>\n

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

CVE ID: CVE-2025-45427
\nSeverity: Critical (9.8)
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: Potential system compromise<\/a> and data leakage<\/p>\n

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

Product | Affected Versions<\/p>\n

Tenda AC9 v1.0<\/a> | V15.03.05.14_multi<\/p>\n

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

The vulnerability CVE-2025-45427 exploits a flaw in the security<\/a> parameter of \/goform\/WifiBasicSet. When a particular input size is exceeded, this leads to a stack overflow<\/a> error. As the stack overflow error occurs, it creates an opportunity for an attacker to execute arbitrary code remotely<\/a>. This can potentially lead to full system<\/a> compromise or data leakage.<\/p>\n

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

Below is a conceptual example of how the vulnerability might be exploited<\/a>, demonstrated through an HTTP request:<\/p>\n

POST \/goform\/WifiBasicSet HTTP\/1.1\nHost: target_router_ip\nContent-Type: application\/json\n{\n\"security_param\": \"A\"*10000\n}<\/code><\/pre>\n
In the above example, a JSON payload is sent to the vulnerable endpoint<\/a> with a `security_param` parameter containing a large number of ‘A’ characters. This is enough to cause a stack overflow, allowing the attacker to eventually execute arbitrary code remotely<\/a>.<\/p>\n
Mitigation Measures<\/strong><\/p>\n
The recommended mitigation measure for this vulnerability is to apply the vendor patch if it’s available<\/a>. In scenarios where the vendor patch is not available or cannot be applied immediately, using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can serve as temporary mitigation. These systems can help monitor network traffic and detect potential<\/a> exploits of this vulnerability, thereby providing an additional layer of security.
\nIn conclusion, CVE-2025-45427 is a critical vulnerability<\/a> that demands immediate attention and action. The potential for system compromise and data leakage makes it a significant threat<\/a> to any system running the affected firmware version of Tenda AC9 v1.0. By understanding the nature of this vulnerability and applying the recommended mitigation measures, it is possible to significantly reduce the risk of exploitation.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview The cybersecurity community has identified a critical vulnerability in the firmware version V15.03.05.14_multi of Tenda AC9 v1.0. Known as CVE-2025-45427, this vulnerability can lead to remote arbitrary code execution due to a stack overflow error in the security parameter of \/goform\/WifiBasicSet. As a cybersecurity expert, it’s important to understand the nature of this vulnerability, […]<\/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":[86,80],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-33547","post","type-post","status-publish","format-standard","hentry","category-uncategorized","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