4D vulnerabilities
We track 4 vulnerabilities in 4D products across 5 products. 4 are rated high or critical, and none are known to be exploited. The most recent was published on April 30, 2026.
Latest 4D vulnerabilities
- 7.5 High severity
4D Server: Improper Restriction of XML External Entity Reference
Unauthenticated attackers can exploit a weakness in the XML parser functionality of the SOAP endpoints in 4D server. This allows them to obtain read access to files on the application server and adjacent network shares, and perform HTTP GET requests to arbitra
- 7.8 High severity
4D.exe: Uncontrolled Search Path Element
An uncontrolled search path element vulnerability has been found on 4D and 4D server Windows executables applications, affecting version 19 R8 100218. This vulnerability consists in a DLL hijacking by replacing x64 shfolder.dll in the installation path, causin
- 7.5 High severity
Server: Improper Authentication
A broken authentication vulnerability in 4D SAS 4D Server software v17, v18, v19 R7, and earlier allows attackers to send crafted TCP packets containing requests to perform arbitrary actions.
- 7.5 High severity
Server: Improper Certificate Validation
An information disclosure vulnerability in 4D SAS 4D Server Application v17, v18, v19 R7 and earlier allows attackers to retrieve password hashes for all users via eavesdropping.