SecuriTricks - CVE-2026-20893

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.

Product(s) Impacted

Vendor	Product	Versions
Fujitsu	Authconductor Client Basic	2.0.25.0, <2.0.25.0

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-346

Origin Validation Error

The product does not properly verify that the source of data or communication is valid.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	fujitsu	authconductor_client_basic	2.0.25.0	/	/	/	/	/	/	/
a	fujitsu	authconductor_client_basic	<2.0.25.0	/	/	/	/	/	/	/

References

https://jvn.jp/en/jp/JVN24626628/

https://www.fmworld.net/biz/common/info/202601acc/

CVSS Score

8.5 / 10

CVSS Data - 4.0

Attack Vector: LOCAL
Attack Complexity: LOW
Attack Requirements: NONE
Privileges Required: LOW
User Interaction: NONE
Scope:
Confidentiality Impact: HIGH
Integrity Impact: HIGH
Availability Impact: HIGH
Exploit Maturity: NOT_DEFINED

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

View Vector String

Timeline

Published: Jan. 7, 2026, 12:17 p.m.
Last Modified: Jan. 8, 2026, 6:08 p.m.

Status : Awaiting Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

vultures@jpcert.or.jp

CVE-2026-20893