CVE-2021-47761

HIGH

MilleGPG5 5.7.2 - Privilege Escalation

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2021-47761. PoCs published by Alessandro Salzano.

AI-analyzed exploit summary This exploit demonstrates a local privilege escalation (LPE) vulnerability in MilleGPG5 5.7.2 by replacing the legitimate mysqld.exe with a malicious executable due to insecure folder permissions. The exploit leverages the service running as Local System to gain NT AUTHORITY\SYSTEM privileges upon system restart.

Description

MilleGPG5 5.7.2 contains a local privilege escalation vulnerability that allows authenticated users to modify service executable files in the MariaDB bin directory. Attackers can replace the mysqld.exe with a malicious executable, which will execute with system privileges when the computer restarts.

Exploits (1)

exploitdb WORKING POC
by Alessandro Salzano · textlocalwindows
https://www.exploit-db.com/exploits/50558

This exploit demonstrates a local privilege escalation (LPE) vulnerability in MilleGPG5 5.7.2 by replacing the legitimate mysqld.exe with a malicious executable due to insecure folder permissions. The exploit leverages the service running as Local System to gain NT AUTHORITY\SYSTEM privileges upon system restart.

Classification
Working Poc 100%
Attack Type
Lpe
Complexity
Trivial
Reliability
Reliable
Target: MilleGPG5 5.7.2
Auth required
Prerequisites: Low-privileged user access on the target system · Ability to download and replace the mysqld.exe file · System restart or service restart capability
devstral-2 · analyzed Feb 18, 2026 Full analysis →

References (2)

Core 2
Core References
Exploit, Third Party Advisory exploit
https://www.exploit-db.com/exploits/50558
Various Sources product
https://millegpg.it/

Scores

CVSS v3 7.8
EPSS 0.0009
EPSS Percentile 0.9%
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-276
Status published
Published Jan 15, 2026
Tracked Since Feb 18, 2026