PT-2026-34668 · Tungsten Automation · Kofax Capture

Vulncheck · Published 2026-04-23 · Updated 2026-04-23 · CVE-2026-23751

Mitre

CVSS v3.1

9.8

Critical

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Exploit

Fix

Missing Authentication

Weakness Enumeration

CWE-441

CWE-306

Related Identifiers

CVE-2026-23751

Affected Products

Kofax Capture

References · 4

• 🔥 https://gist.github.com/VAMorales/3888941d6e5efdd4b2e673e999f68ca2 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-23751 · Security Note
• https://docshield.tungstenautomation.com/Portal/Products/en_US/KC/11.1.0-40hy9nfk91/KC.htm · Note
• https://vulncheck.com/advisories/kofax-capture-unauthenticated-file-read-write-smb-coercion-via-net-remoting · Note