CVE-2021-47859

HIGH

ActivIdentity 8.2 - Local Privilege Escalation

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2021-47859. PoCs published by SamAlucard.

AI-analyzed exploit summary This is a writeup describing an unquoted service path vulnerability in ActivIdentity 8.2. The vulnerability allows local privilege escalation due to improper handling of spaces in the service path.

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.

Exploits (1)

exploitdb WRITEUP
by SamAlucard · textlocalwindows
https://www.exploit-db.com/exploits/49703

This is a writeup describing an unquoted service path vulnerability in ActivIdentity 8.2. The vulnerability allows local privilege escalation due to improper handling of spaces in the service path.

Classification
Writeup 90%
Attack Type
Lpe
Complexity
Trivial
Reliability
Reliable
Target: ActivIdentity 8.2
Auth required
Prerequisites: Local access to the system · Ability to write to the root of C:\
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (3)

Core 3
Core References
Exploit, Third Party Advisory exploit
https://www.exploit-db.com/exploits/49703
Various Sources product
https://www.hidglobal.com/

Scores

CVSS v3 7.8
EPSS 0.0013
EPSS Percentile 2.7%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-428
Status published
Products (1)
HID Global/ActivIdentity 8.2
Published Jan 21, 2026
Tracked Since Feb 18, 2026