Security readout for executives and security teams
Plain-English summary
Entrust IFI On Premise systems can expose a SmartCardController service that accepts unsafe remote calls. If attackers can reach that service, they may read sensitive files, trigger outbound authentication, and potentially take over the host. This is critical for organizations issuing financial cards on affected on-premise versions.
Executive priority
Treat this as urgent for any card issuance environment using affected on-premise Entrust IFI software. The business risk is server compromise and disclosure of sensitive service or installation data.
Technical view
The issue is insecure .NET Remoting in DCG.SmartCardControllerService.exe. A TCP remoting channel uses unsafe formatter/settings and permits unauthenticated invocation of exposed objects. The CVE maps to missing authentication and unsafe deserialization, with possible arbitrary file read, authentication coercion, file write, and remote code execution.
Likely exposure
Exposure is likely limited to Entrust Instant Financial Issuance On Premise, formerly CardWizard, versions 5.x before 6.10.5 and versions before 6.11.1 where the remoting port is reachable over a network.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. Exploitation requires network reachability to the remoting service and no authentication, making internal exposure still significant.
Researcher notes
Evidence supports unauthenticated network attack surface through unsafe .NET Remoting. Do not assume internet exposure or exploitation without local telemetry. Focus validation on version, service presence, reachability, and vendor advisory alignment.
Mitigation direction
- Upgrade affected IFI On Premise installations to vendor-fixed versions 6.10.5 or 6.11.1 as applicable.
- Review the Entrust advisory for branch-specific patch guidance.
- Restrict network access to the SmartCardController remoting service until patched.
- Limit service reachability to trusted administrative networks only.
- Review affected hosts for signs of file access or unexpected outbound authentication attempts.
Validation and detection
- Inventory Entrust IFI or CardWizard on-premise servers and record installed versions.
- Confirm whether DCG.SmartCardControllerService.exe is present and running.
- Determine whether the remoting service is reachable from untrusted networks.
- Validate patched status against Entrust guidance for 6.10.5 and 6.11.1.
- Check logs for unusual service activity, file access, or outbound authentication behavior.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-306: Credential and account abuse lookup
Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCWE-502: Code execution behavior lookup
Code execution and unsafe deserialization weaknesses often justify reviewing execution behavior and process telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupFile access behavior lookup
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-23746 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.3 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N——VulnCheckVulnerability scoring details
Base CVSS 4.0 score
9.3CriticalVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://www.entrust.com/products/issuance-systems/instant/financial-cardCVE reference, VulnCheck · product
- https://trustedcare.entrust.com/s/article/E26-001-NET-Remoting-Vulnerabilities-in-the-Smart-Card-Controller-Service-of-the-Instant-Financial-Issuance-On-Premise-SoftwareCVE reference, VulnCheck · vendor-advisory, patch
- https://www.vulncheck.com/advisories/entrust-ifi-smartcardcontroller-service-net-remoting-rceCVE reference, VulnCheck · third-party-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Missing Authentication for Critical Function
Missing Authentication for Critical Function represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
Deserialization of Untrusted Data
Deserialization of Untrusted Data represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.