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CVE-2026-20893

HIGH
8.5
CVSS Score
Published: January 7, 2026 at 03:16 AM UTC
Updated: June 17, 2026 at 10:18 AM UTC
1 product affected across 1 vendorAuthconductor Client Basic

Using Fujitsu Security Solution AuthConductor Client Basic V2 by Fujitsu Client Computing Limited?

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Severity
HIGH8.5
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

Source: cverecord
https://www.fmworld.net/biz/common/info/202601acc/
Source: cverecord
https://jvn.jp/en/jp/JVN24626628/

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.5HIGHjpcert
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-346

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