CVE-2026-58126: critical vulnerability in Hyland PACSgear PACS Scan
PACSgear PACS Scan 5.2.1 Unauthenticated RCE via .NET Remoting TCP Service
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
48Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 9.3epss 1.8%
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.
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
Affected products
Hyland · PACSgear PACS Scanpublic PoCs found — 1
cve_referencegist.github.com/VAMorales/6dc232729cdd517fa30d581fbcd98d8funverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.