CVE-2021-47859 - CVE House

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Status published High CVE-2021-47859

ActivIdentity 8.2 - 'ac.sharedstore' Unquoted Service Path

8.5 CVSS

Vulnerability Description

ActivIdentity 8.2 contains an unquoted service path vulnerability in the ac.sharedstore service that allows local attackers to potentially execute arbitrary code. Attackers can exploit the unquoted binary path in C:\Program Files\Common Files\ActivIdentity\ to inject malicious executables and escalate privileges.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

SamAlucard

References

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Affected Vendor

HID Global

View all reports →

Affected Software

ActivIdentity

Vulnerable Versions:

8.2

Timeline

Official Publish: January 21st, 2026

Last Modified: March 5th, 2026

Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

MITRE ATT&CK TTPs

T1574 Hijack Execution Flow

Privilege Escalation

T1036 Masquerading

Defense Evasion

T1543 Create or Modify System Process

T1059 Command and Scripting Interpreter

T1569 System Services