{"document":{"category":"csaf_vex","csaf_version":"2.0","title":"CVE-2026-58126: PACSgear PACS Scan 5.2.1 Unauthenticated RCE via .NET Remoting TCP Service","publisher":{"category":"vendor","name":"HarborGuard Database","namespace":"https://database.harborguard.co"},"tracking":{"id":"CVE-2026-58126","status":"final","version":"1","initial_release_date":"2026-07-01T14:39:01.640Z","current_release_date":"2026-07-01T16:06:12.873Z","revision_history":[{"date":"2026-07-01T14:39:01.640Z","number":"1","summary":"Initial machine-readable export from HarborGuard."}]},"distribution":{"tlp":{"label":"WHITE"},"text":"Public CVE data; freely redistributable."},"notes":[{"category":"description","text":"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.","title":"CVE description"}],"references":[{"category":"self","summary":"CVE-2026-58126 on HarborGuard Database","url":"https://database.harborguard.co/cve/CVE-2026-58126"},{"category":"external","summary":"CVE Record","url":"https://www.cve.org/CVERecord?id=CVE-2026-58126"},{"category":"external","summary":"Researcher Disclosure","url":"https://gist.github.com/VAMorales/6dc232729cdd517fa30d581fbcd98d8f"},{"category":"external","summary":"Product Webpage","url":"https://www.hyland.com/en/solutions/products/pacsgear"},{"category":"external","summary":"vulncheck.com","url":"https://www.vulncheck.com/advisories/pacsgear-pacs-scan-unauthenticated-rce-via-net-remoting-tcp-service"}]},"product_tree":{"branches":[{"category":"vendor","name":"Hyland","branches":[{"category":"product_name","name":"PACSgear PACS Scan","branches":[{"category":"product_version","name":"5.2.1","product":{"name":"Hyland PACSgear PACS Scan 5.2.1","product_id":"CSAFPID-1","product_identification_helper":{"cpe":"cpe:2.3:a:hyland:pacsgear_pacs_scan:5.2.1:*:*:*:*:*:*:*"}}}]}]}]},"vulnerabilities":[{"cve":"CVE-2026-58126","title":"PACSgear PACS Scan 5.2.1 Unauthenticated RCE via .NET Remoting TCP Service","notes":[{"category":"description","text":"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.","title":"CVE description"}],"product_status":{"known_affected":["CSAFPID-1"]},"scores":[{"cvss_v4":{"version":"4.0","vectorString":"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","baseScore":9.3,"baseSeverity":"CRITICAL"},"products":["CSAFPID-1"]}],"remediations":[{"category":"none_available","details":"No fixed version is published yet. Monitor the upstream advisory.","product_ids":["CSAFPID-1"]}]}]}