CVE-2021-47859

HIGH
2026-01-21 [email protected]
7.8
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
PoC Detected
Jan 26, 2026 - 15:04 vuln.today
Public exploit code
CVE Published
Jan 21, 2026 - 18:16 nvd
HIGH 7.8

Tags

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.

Analysis

ac.sharedstore service contains a vulnerability that allows attackers to potentially execute arbitrary code (CVSS 7.8).

Technical Context

exists in the ac.sharedstore component. 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.

Affected Products

Product: ac.sharedstore service. Component: ac.sharedstore.

Remediation

Monitor vendor advisories for a patch.

Priority Score

59
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +39
POC: +20

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CVE-2021-47859 vulnerability details – vuln.today

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