An issue was discovered in Visualware MyConnection Server before v11.1a.
Priority MEDIUM 56CWE-434Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-434.
Summary
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.
Why it matters now
EPSS 0.12687 96th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:visualware:myconnection_server:*:*:*:*:*:*:*:* | before 11.1a | Vulnerable | Visualware |
- cpe:2.3:a:visualware:myconnection_server:*:*:*:*:*:*:*:* Versions before 11.1a Vulnerable ·Visualware
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-27198
- 2026-10-03 Alias added: GHSA-q9xv-9vww-9m7g
References
Advisory 5
- https://myconnectionserver.visualware.com/download.html
- https://myconnectionserver.visualware.com/support/newrelease.html
- 20210226 VisualWare MyConnection Server 11.x Remote Code Execution Vulnerability
- http://packetstormsecurity.com/files/161571/VisualWare-MyConnection-Server-11.x-Remote-Code-Execution.html
- https://www.securifera.com/advisories/cve-2021-27198/
More Visualware Myconnection Server vulnerabilities
- TI-2023-22402 Cross-site scripting in Visualware MyConnection Server CVSS 3.0HIGH 8.8
- TI-2023-22400 Visualware MyConnection Server doRTAAccessUPass Exposed Dangerous Method Information… CVSS 3.0HIGH 7.5
- TI-2023-22401 Path traversal in Visualware MyConnection Server CVSS 3.0HIGH 7.2
- TI-2023-22403 XML external entity injection in Visualware MyConnection Server CVSS 3.0MEDIUM 6.5
- TI-2021-08992 In Visualware MyConnection Server before 11.0b build 5382, each published report is not… CVSS 3.1HIGH 7.5
- TI-2014-04184 Multiple cross-site scripting (XSS) vulnerabilities in test.php in Visualware… CVSS 2.0MEDIUM 4.3
Sources
- CVE-2021-27198 · CVE Program
- CVE-2021-27198 · NVD
- FIRST EPSS
- GHSA-q9xv-9vww-9m7g · GitHub Advisory Database · CC BY 4.0
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