CVE-2021-27198

An issue was discovered in Visualware MyConnection Server before v11.1a. Unauthenticated Remote Code Execution can occur via Arbitrary File Upload in the web service when using a myspeed/sf?filename= URI. This application is written in Java and is thus cross-platform. The Windows installation runs as SYSTEM, which means that exploitation gives one Administrator privileges on the target system.

• CWE-434

• http://packetstormsecurity.com/files/161571/VisualWare-MyConnection-Server-11.x-Remote-Code-Execution.htmlThird Party Advisory, VDB Entry
• http://seclists.org/fulldisclosure/2021/Feb/81Mailing List, Third Party Advisory
• https://myconnectionserver.visualware.com/download.htmlProduct, Vendor Advisory
• https://myconnectionserver.visualware.com/support/newrelease.htmlRelease Notes, Vendor Advisory
• https://www.securifera.com/advisories/cve-2021-27198/Third Party Advisory
• http://packetstormsecurity.com/files/161571/VisualWare-MyConnection-Server-11.x-Remote-Code-Execution.htmlThird Party Advisory, VDB Entry
• http://seclists.org/fulldisclosure/2021/Feb/81Mailing List, Third Party Advisory
• https://myconnectionserver.visualware.com/download.htmlProduct, Vendor Advisory
• https://myconnectionserver.visualware.com/support/newrelease.htmlRelease Notes, Vendor Advisory
• https://www.securifera.com/advisories/cve-2021-27198/Third Party Advisory

Published

Feb 26, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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