CVE-2024-27674

HIGH

Macro Expert <4.9.4 - Privilege Escalation

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2024-27674. PoCs published by Alaatk.

AI-analyzed exploit summary This repository describes a privilege escalation vulnerability in Macro Expert <= 4.9.4 due to insecure permissions on the installation directory, allowing unprivileged users to replace MacroService.exe with a malicious binary executed as SYSTEM.

Description

Macro Expert through 4.9.4 allows BUILTIN\Users:(OI)(CI)(M) access to the "%PROGRAMFILES(X86)%\GrassSoft\Macro Expert" folder and thus an unprivileged user can escalate to SYSTEM by replacing the MacroService.exe binary.

Exploits (1)

nomisec WRITEUP 1 stars
by Alaatk · poc
https://github.com/Alaatk/CVE-2024-27674

This repository describes a privilege escalation vulnerability in Macro Expert <= 4.9.4 due to insecure permissions on the installation directory, allowing unprivileged users to replace MacroService.exe with a malicious binary executed as SYSTEM.

Classification
Writeup 90%
Attack Type
Lpe
Complexity
Trivial
Reliability
Reliable
Target: Macro Expert <= 4.9.4
No auth needed
Prerequisites: Local access to the system · Macro Expert installed with vulnerable permissions
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (2)

Core 2

Scores

CVSS v3 7.8
EPSS 0.0031
EPSS Percentile 22.7%
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 none
Automatable no
Technical Impact total

Details

CWE
CWE-276
Status published
Products (1)
macro-expert/macro_expert < 4.9.4
Published Apr 03, 2024
Tracked Since Feb 18, 2026