TI-2024-18345 Aliases CVE-2024-27674 GHSA-f636-m6gc-99ch

Macro Expert through 4.9.4 allows BUILTIN\Users:(OI)(CI)(M) access to the…

LOW 36CWE-276Published 2024-04-03 · Updated 2024-10-28

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.0031 23rd percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:macro-expert:macro_expert::::::::	up to 4.9.4	Vulnerable	Macro-Expert

cpe:2.3:a:macro-expert:macro_expert:*:*:*:*:*:*:*:* Versions up to 4.9.4 Vulnerable ·Macro-Expert

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2024-27674
2026-10-03 Alias added: GHSA-f636-m6gc-99ch

References

Advisory 1

https://github.com/Alaatk/CVE-2024-27674/tree/main

Other 1

https://www.macro-expert.com/

TI-2021-22396 Macro Expert 4.7 - Unquoted Service Path CVSS 4.0HIGH 8.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences