CVE-2025-34095 json
Mako Server v2.5 and v2.6 OS Command Injection via examples/save.lsp
published 2025-07-10 15 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-21031
- cvss
- 9.3
- version 4.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 6.2%
- EPSS 6.2% chance of exploitation in 30 days, percentile 93%
- public exploits
- 1
- Metasploit
Summary
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.
Timeline
- First public exploit (Metasploit exploit/multi/http/makoserver_cmd_exec)
- Published
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- total
- Assessed
- 15 mo ago
Exploit prediction
6.22% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Metasploit exploit/multi/http/makoserver_cmd_exec Mako Server v2.5, 2.6 OS Command Injection RCE metasploit exploit, excellent rank, 2017-09-03
- raw.githubusercontent.com https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/multi/http/makoserver_cmd_exec.rb referenced PoC, tagged "exploit" by a source, unverified
- exploit-db.com https://www.exploit-db.com/exploits/43132 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 9.3 | 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 |
| CNA | 4.0 | 9.3 | 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- Real Time Logic Mako Server
Classification
- Weakness
-
- CWE-78 Improper Neutralization of Special Elements used in an OS Command
References
Sources
- CVE List CVE-2025-34095
- NVD CVE-2025-34095
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