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TI-2026-41858 Aliases CVE-2026-58126GHSA-v3r5-hc9j-49g7

PACSgear PACS Scan 5.2.1 Unauthenticated RCE via .NET Remoting TCP Service

Priority HIGH 81CWE-306Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass, Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-306 and CWE-502.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01843 79th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
HylandPACSgear PACS Scan5.2.1 and later—No fix listedCNA
  • PACSgear PACS Scan VendorHyland Affected 5.2.1 and later Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:hyland:pacsgear:*:*:*:*:*:*:*:*up to 5.2.1VulnerableHyland
  • cpe:2.3:a:hyland:pacsgear:*:*:*:*:*:*:*:* Versions up to 5.2.1 Vulnerable ·Hyland

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-58126
  2. 2026-10-03 Alias added: GHSA-v3r5-hc9j-49g7

References

Exploit 1

Other 1

  • TI-2026-41859 PACSgear MediaWriter 5.2.1 Unauthenticated RCE via .NET Remoting TCP Service CVSS 4.0CRITICAL 9.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences