CVE-2025-34095 CRITICAL

CVE-2025-34095: Mako Server v2.5 and v2.6 OS Command Injection via examples/save.lsp

Vendor Real Time Logic
Product Mako Server
Weakness CWE-78
Published July 10, 2025
Last update May 14, 2026

CVSS base score

9.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

An OS command injection vulnerability exists in Mako Server versions 2.5 and 2.6, specifically within the tutorial interface provided by the examples/save.lsp endpoint. An unauthenticated attacker can send a crafted PUT request containing arbitrary Lua os.execute() code, which is then persisted on disk and triggered via a subsequent GET request to examples/manage.lsp. This allows remote command execution on the underlying operating system, impacting both Windows and Unix-based deployments.

Key dates

02Disclosure timeline

July 10, 2025 CVE published
May 14, 2026 Record updated