CVE-2025-29783
vLLM Allows Remote Code Execution via Mooncake Integration
9.0
CRITICAL
CVSS 3.1
EPSS 2.1%
Description
vLLM is a high-throughput and memory-efficient inference and serving engine for LLMs. When vLLM is configured to use Mooncake, unsafe deserialization exposed directly over ZMQ/TCP on all network interfaces will allow attackers to execute remote code on distributed hosts. This is a remote code execution vulnerability impacting any deployments using Mooncake to distribute KV across distributed hosts. This vulnerability is fixed in 0.8.0.
How to fix CVE-2025-29783
To remediate CVE-2025-29783, upgrade the affected package to a fixed version below.
- —upgrade to 0.8.0 or later
- —upgrade to 288ca110f68d23909728627d3100e5a8db820aa2 or later
Is CVE-2025-29783 being exploited?
Low — EPSS is 2.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- >= 0.6.5, < 0.8.0
- from 0, < 288ca110f68d23909728627d3100e5a8db820aa2 | >= 0.6.5, < 0.8.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.0 | CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |