Windows
CVE-2026-20893
HIGH
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionCVE.org
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.
AnalysisAI
Fujitsu Security Solution AuthConductor Client Basic V2 version 2.0.25.0 and earlier contains an origin validation flaw that allows authenticated local attackers to execute arbitrary code with SYSTEM privileges and modify registry values. An attacker with login access to an affected Windows system can exploit this vulnerability to achieve complete system compromise. No patch is currently available.
Technical ContextAI
Classified as CWE-346 (Origin Validation Error). 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 ProductsAI
Origin validation error issue exists in Fujitsu Security Solution AuthConductor Client Basic V2 2.0.25.0 and earlier
RemediationAI
Monitor vendor advisories for a patch.
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Same weakness CWE-346 – Origin Validation Error
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External POC / Exploit Code
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