# CVE-2026-23751

## Summary

- **CVE ID:** CVE-2026-23751
- **Severity:** CRITICAL
- **CVSS Score:** 9.8 (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)
- **CWE:** CWE-306, CWE-441
- **Published:** Apr 23, 2026
- **Last Modified:** Jul 28, 2026

## 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.

## Affected Products

- Tungsten Automation — Kofax Capture (6.0.0.0)
- Tungsten Automation — Tungsten Capture (formerly Kofax Capture) (6.0.0.0)

## References

- [CNA](https://gist.github.com/VAMorales/3888941d6e5efdd4b2e673e999f68ca2)
- [CNA](https://docshield.tungstenautomation.com/Portal/Products/en_US/KC/11.1.0-40hy9nfk91/KC.htm)
- [CNA](https://www.vulncheck.com/advisories/kofax-capture-unauthenticated-file-read-write-smb-coercion-via-net-remoting)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.88%
- **EPSS Percentile:** 57.0

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._