# CVE-2026-20893

## Summary

- **CVE ID:** CVE-2026-20893
- **Severity:** HIGH
- **CVSS Score:** 8.5 (CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N)
- **CWE:** CWE-346
- **Published:** Jan 7, 2026
- **Last Modified:** Mar 12, 2026

## Description

Origin validation error issue exists in Fujitsu Security Solution AuthConductor Client Basic V2 2.0.25.0 and earlier. If this vulnerability is exploited, an attacker who can log in to the Windows system where the affected product is installed may execute arbitrary code with SYSTEM privilege and/or modify the registry value.

## Affected Products

- Fujitsu Client Computing Limited — Fujitsu Security Solution AuthConductor Client Basic V2 (2.0.25.0 and earlier)

## References

- [CNA](https://www.fmworld.net/biz/common/info/202601acc/)
- [CNA](https://jvn.jp/en/jp/JVN24626628/)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.13%
- **EPSS Percentile:** 2.7

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-12._