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CVE-2026-21665

Quick assessment

Affected
Fiserv Originate Loans Peripherals (formerly Velocity Services) -- Print Service component
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Fiserv Originate Loans Peripherals Print Service是英国Fiserv公司的一个连接云端贷款系统与本地物理硬件的中间件。 Fiserv Originate Loans Peripherals Print Service 2021.2.4版本存在安全漏洞，该漏洞源于使用不安全的.NET Remoting TCP通道，可能导致远程代码执行。

AI Predicted 9.8 Difficulty: Easy EPSS 0.45% · P37

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-21665

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The Print Service component of Fiserv Originate Loans Peripherals (formerly Velocity Services) in unsupported version 2021.2.4 (build 4.7.3155.0011) uses deprecated .NET Remoting TCP channels that allow unsafe deserialization of untrusted data. When these services are exposed to an untrusted network in a client-managed deployment, an unauthenticated attacker can achieve remote code execution. Version 2021.2.4 is no longer supported by Fiserv. Customers should upgrade to a currently supported release (2025.1 or later) and ensure that .NET Remoting service ports are not exposed beyond trusted network boundaries. This CVE documents behavior observed in a client-hosted deployment running an unsupported legacy version of Originate Loans Peripherals with .NET Remoting ports exposed to an untrusted network. This is not a default or supported configuration. Customers running legacy versions should upgrade to a currently supported release and ensure .NET Remoting ports are restricted to trusted network segments. The finding does not apply to Fiserv-hosted environments.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Fiserv Originate Loans Peripherals Print Service 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Fiserv Originate Loans Peripherals Print Service是英国Fiserv公司的一个连接云端贷款系统与本地物理硬件的中间件。 Fiserv Originate Loans Peripherals Print Service 2021.2.4版本存在安全漏洞，该漏洞源于使用不安全的.NET Remoting TCP通道，可能导致远程代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Fiserv Originate Loans Peripherals (formerly Velocity Services) -- Print Service component 2021.2.4 ~ 2021.2.4 -

II. Public POCs for CVE-2026-21665

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III. Intelligence Information for CVE-2026-21665

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V. Comments for CVE-2026-21665

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