CVE-2026-23746 Entrust Instant Financial Issuance (IFI) SmartCardController Service .NET Remoting RCE
Remote unauthenticated attackers can achieve code execution and data disclosure via insecure .NET Remoting in Entrust IFI SmartCardController service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-23746?
CVE-2026-23746 is a critical unsafe deserialization vulnerability in Entrust Corporation Instant Financial Issuance (IF), published on 15 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Entrust Instant Financial Issuance (IFI) On Premise software (formerly referred to as CardWizard) versions 5.x, prior to 6.10.5, and prior to 6.11.1 contain an insecure .NET Remoting exposure in the SmartCardController service (DCG.SmartCardControllerService.exe). The service registers a TCP remoting channel with unsafe formatter/settings that permit untrusted remoting object invocation. A remote, unauthenticated attacker who can reach the remoting port can invoke exposed remoting objects to read arbitrary files from the server and coerce outbound authentication, and may achieve arbitrary file write and remote code execution via known .NET Remoting exploitation techniques. This can lead to disclosure of sensitive installation and service-account data and compromise of the affected host.
Which versions are affected by CVE-2026-23746?
How do I fix CVE-2026-23746?
No fix has been published for CVE-2026-23746 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2026-23746 being exploited?
There is no known exploitation of CVE-2026-23746 in the wild and no public exploit code.
Sources
Also known as GHSA-99gv-mw3c-hp42.