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CVE-2026-58126— PACSgear PACS Scan 5.2.1 Unauthenticated RCE via .NET Remoting TCP Service

Quick assessment

Affected
Hyland PACSgear PACS Scan
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.

Hyland PACSgear PACS Scan是美国Hyland公司的一款医疗影像归档与通信系统的扫描组件。 Hyland PACSgear PACS Scan 5.2.1版本存在安全漏洞，该漏洞源于暴露的.NET Remoting TCP服务（端口22222）通过PGImageExchQueue.exe无需身份验证，导致远程攻击者可以读取和写入任意文件，并可通过DLL劫持实现远程代码执行。

CVSS 9.8 · Critical EPSS 1.84% · P79

Affected Version Matrix 1

VendorProduct Version RangeStatus
Hyland PACSgear PACS Scan 5.2.1 affected
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I. Basic Information for CVE-2026-58126

Vulnerability Information
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Vulnerability Title
PACSgear PACS Scan 5.2.1 Unauthenticated RCE via .NET Remoting TCP Service
Source: CVE Program / CVE List V5
Vulnerability Description
PACSgear PACS Scan 5.2.1 contains an unauthenticated remote code execution vulnerability that allows remote attackers to read and write arbitrary files by exploiting an exposed .NET Remoting TCP service on port 22222 via PGImageExchQueue.exe without any authentication requirement. Attackers can chain the arbitrary file write primitive with DLL hijacking in PGImageExchangeQueueSvc.exe, which loads missing DLLs such as CRYPTSP.DLL from the application directory, to achieve remote code execution as NT Authority\SYSTEM upon service restart.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Hyland PACSgear PACS Scan 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Hyland PACSgear PACS Scan是美国Hyland公司的一款医疗影像归档与通信系统的扫描组件。 Hyland PACSgear PACS Scan 5.2.1版本存在安全漏洞，该漏洞源于暴露的.NET Remoting TCP服务（端口22222）通过PGImageExchQueue.exe无需身份验证，导致远程攻击者可以读取和写入任意文件，并可通过DLL劫持实现远程代码执行。
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
Hyland PACSgear PACS Scan 5.2.1 -

II. Public POCs for CVE-2026-58126

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III. Intelligence Information for CVE-2026-58126

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Exploits & Public PoCs for CVE-2026-58126 (1)

Vendor Pages for CVE-2026-58126 (1)

Other References for CVE-2026-58126 (1)

IV. Related Vulnerabilities

Same vendor: Hyland
Same weakness: CWE-306

V. Comments for CVE-2026-58126

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