What’s Vulnerable › Vulnerabilities

CVE-2025-29783: vLLM Allows Remote Code Execution via Mooncake Integration

• Severity: critical (CVSS 9.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-03-19 · updated 2026-06-17
• Weakness: CWE-502

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.

Affected products

• vllm-project vllm: from 0.6.5 before 0.8.0 — fixed in 0.8.0

How to fix

Upgrade to a fixed version: vllm-project vllm 0.8.0. Check the vendor advisory for mitigations.

References

• https://github.com/vllm-project/vllm/commit/288ca110f68d23909728627d3100e5a8db820aa2
• https://github.com/vllm-project/vllm/pull/14228
• https://github.com/vllm-project/vllm/security/advisories/GHSA-x3m8-f7g5-qhm7

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