{"id":87078,"date":"2026-06-09T06:28:23","date_gmt":"2026-06-09T06:28:23","guid":{"rendered":""},"modified":"-0001-11-30T00:00:00","modified_gmt":"-0001-11-30T00:00:00","slug":"cve-2025-61582-denial-of-service-vulnerability-in-ts3-manager-due-to-improper-unicode-handling","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-61582-denial-of-service-vulnerability-in-ts3-manager-due-to-improper-unicode-handling\/","title":{"rendered":"CVE-2025-61582: Denial of Service Vulnerability in TS3 Manager Due to Improper Unicode Handling<\/strong>"},"content":{"rendered":"

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

The vulnerability CVE-2025-61582 poses a significant threat to TS3 Manager, a web interface for maintaining Teamspeak3 servers. It has been identified that versions 2.2.1 and earlier are susceptible to a Denial of Service attack launched by an unauthenticated actor, which can result in system compromise or data leakage. Given the widespread use of TS3 Manager in maintaining Teamspeak3 servers, it is imperative to understand, detect and mitigate this vulnerability to ensure system stability and data integrity.<\/p>\n

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

CVE ID: CVE-2025-61582
\nSeverity: High (7.5 CVSS Score)
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: System compromise or data leakage caused by Denial of Service attack<\/p>\n

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

Product | Affected Versions<\/p>\n

TS3 Manager | 2.2.1 and earlier<\/p>\n

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

The vulnerability is exploited by submitting specially crafted Unicode input to the Server field on the login page of the TS3 Manager. The application fails to properly handle these characters during the ASCII conversion process, resulting in an unhandled exception that terminates the application within four to five seconds of submission.<\/p>\n

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

Here is a conceptual example of how the vulnerability might be exploited through a POST request:<\/p>\n

POST \/login HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/x-www-form-urlencoded\nserver=\ud835\udd66\ud835\udd5f\ud835\udd5a\ud835\udd54\ud835\udd60\ud835\udd55\ud835\udd56_\ud835\udd5a\ud835\udd5f\ud835\udd61\ud835\udd66\ud835\udd65<\/code><\/pre>\n
Reiteration: This is a conceptual example and not a real-life exploit.<\/p>\n
Mitigation and Recommendations<\/strong><\/p>\n
The issue has been fixed in TS3 Manager version 2.2.2. Users are strongly advised to update to this version. If updating is not immediately possible, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as temporary mitigation. It’s also recommended to monitor network traffic for any unusual activity, particularly any unusual Unicode submissions.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview The vulnerability CVE-2025-61582 poses a significant threat to TS3 Manager, a web interface for maintaining Teamspeak3 servers. It has been identified that versions 2.2.1 and earlier are susceptible to a Denial of Service attack launched by an unauthenticated actor, which can result in system compromise or data leakage. Given the widespread use of TS3 […]<\/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":[],"tags":[],"vendor":[],"product":[],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-87078","post","type-post","status-publish","format-standard","hentry"],"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