Kofax Capture, now referred to as Tungsten Capture, version 6.0.0.0 (other versions may be affected) exposes a deprecated .NET Remoting HTTP channel on port 2424 via the Ascent Capture Service that is accessible without authentication and uses a default, publicly known endpoint identifier. An unauthenticated remote attacker can exploit .NET Remoting object unmarshalling techniques to instantiate a remote System.Net.WebClient object and read arbitrary files from the server filesystem, write attacker-controlled files to the server, or coerce NTLMv2 authentication to an attacker-controlled host, enabling sensitive credential disclosure, denial of service, remote code execution, or lateral movement depending on service account privileges and network environment.

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Fixes

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History

Mon, 27 Apr 2026 21:45:00 +0000

Type Values Removed Values Added
First Time appeared Tungstenautomation
Tungstenautomation kofax Capture
Vendors & Products Tungstenautomation
Tungstenautomation kofax Capture

Sat, 25 Apr 2026 02:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 23 Apr 2026 15:45:00 +0000

Type Values Removed Values Added
Description Kofax Capture, now referred to as Tungsten Capture, version 6.0.0.0 (other versions may be affected) exposes a deprecated .NET Remoting HTTP channel on port 2424 via the Ascent Capture Service that is accessible without authentication and uses a default, publicly known endpoint identifier. An unauthenticated remote attacker can exploit .NET Remoting object unmarshalling techniques to instantiate a remote System.Net.WebClient object and read arbitrary files from the server filesystem, write attacker-controlled files to the server, or coerce NTLMv2 authentication to an attacker-controlled host, enabling sensitive credential disclosure, denial of service, remote code execution, or lateral movement depending on service account privileges and network environment.
Title Kofax Capture 6.0.0.0 Unauthenticated File Read/Write & SMB Coercion via .NET Remoting
Weaknesses CWE-306
CWE-441
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.3, 'vector': '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'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-04-25T01:20:38.886Z

Reserved: 2026-01-15T18:42:20.938Z

Link: CVE-2026-23751

cve-icon Vulnrichment

Updated: 2026-04-25T01:20:32.794Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-04-23T16:16:24.463

Modified: 2026-04-24T14:50:56.203

Link: CVE-2026-23751

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-28T07:45:26Z

Weaknesses