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9.3
CVE-2026-58126: PACSgear PACS Scan 5.2.1 allows unauthorized file access and code execution
CVE-2026-58126
Summary
A security flaw in PACSgear PACS Scan 5.2.1 allows hackers to access and modify any file on the system without a password, potentially giving them control over the system. This is a serious issue because it could allow an attacker to take control of the system. To protect yourself, update to the latest version of PACSgear PACS Scan or remove the vulnerable software from your system.
Original title
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 se...
Original 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.
nvd CVSS3.1
9.8
nvd CVSS4.0
9.3
Vulnerability type
CWE-306
Missing Authentication for Critical Function
CWE-502
Deserialization of Untrusted Data
Published: 1 Jul 2026 · Updated: 23 Jul 2026 · First seen: 1 Jul 2026