{"id":53613,"date":"2025-06-19T11:42:43","date_gmt":"2025-06-19T11:42:43","guid":{"rendered":""},"modified":"2025-09-10T11:37:54","modified_gmt":"2025-09-10T17:37:54","slug":"cve-2025-45986-critical-command-injection-vulnerability-in-blink-routers","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-45986-critical-command-injection-vulnerability-in-blink-routers\/","title":{"rendered":"CVE-2025-45986: Critical Command Injection Vulnerability in Blink Routers<\/strong>"},"content":{"rendered":"

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

The cybersecurity field is always on high alert for any vulnerabilities that could compromise the security of systems and networks. In this blog post, we’re discussing a critical vulnerability, CVE-2025-45986, that affects multiple versions of Blink routers. This vulnerability, if exploited, can lead to system<\/a> compromise or data leakage, posing a significant threat to the integrity, confidentiality, and availability of your data and systems.
\nBlink routers are widely used in homes and businesses, making this a concern for a broad range of users, from individual consumers to large corporations. The exploit takes advantage of a command injection vulnerability, which allows attackers to execute arbitrary<\/a> commands on the system. This is a severe vulnerability<\/a> that has been rated with a CVSS score of 9.8, emphasizing the urgency in addressing this issue.<\/p>\n

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

CVE ID: CVE-2025-45986
\nSeverity: Critical, CVSS 9.8
\nAttack Vector: Network
\nPrivileges Required: Low
\nUser Interaction: None
\nImpact: System compromise<\/a>, potential data leakage<\/p>\n

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

Product | Affected Versions<\/p>\n

BL-WR9000 | V2.4.9
\nBL-AC2100_AZ3 | V1.0.4
\nBL-X10_AC8 | v1.0.5
\nBL-LTE300 | v1.2.3
\nBL-F1200_AT1 | v1.0.0
\nBL-X26_AC8 | v1.2.8
\nBLAC450M_AE4 | v4.0.0
\nBL-X26_DA3 | v1.2.7<\/p>\n

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

The vulnerability lies in the bs_SetMacBlack function of the affected router<\/a> firmware. This function accepts a ‘mac’ parameter without validating or sanitizing the input<\/a> effectively. As a result, an attacker can inject malicious commands through this parameter, which are then executed by the system<\/a>. This type of attack, known as command injection<\/a>, can have devastating effects, including system compromise and data leakage.<\/p>\n

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

The following is a conceptual example of how the vulnerability might be exploited. This is a sample HTTP POST request where a malicious command is injected<\/a> through the ‘mac’ parameter.<\/p>\n

POST \/bs_SetMacBlack HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/json\n{\n\"mac\": \";[malicious_command]\"\n}<\/code><\/pre>\n
In this example, ‘[malicious_command] would be replaced with the actual command that the attacker wishes to execute<\/a> on the system. The semicolon preceding the command is used to separate it from any preceding commands, allowing it to be executed<\/a> independently.
\nPlease note: This example is purely conceptual and meant for educational purposes. Attempting to exploit this vulnerability<\/a> could be illegal and against the ethical guidelines of responsible cybersecurity.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview The cybersecurity field is always on high alert for any vulnerabilities that could compromise the security of systems and networks. In this blog post, we’re discussing a critical vulnerability, CVE-2025-45986, that affects multiple versions of Blink routers. This vulnerability, if exploited, can lead to system compromise or data leakage, posing a significant threat to […]<\/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":[78],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-53613","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-injection"],"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