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Vulnerability record · CVE-2025-29783 · published 19 March 2025

CVE-2025-29783: Vllm deserialization of untrusted data vulnerability

Vllm · Vllm

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.

9.0 CVSS 3.1 Critical EPSS 0.73% · top 47.7% CWE-502 · Deserialization of untrusted data
9.0CVSS 3.1 base score
0.73%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/vllm-project/vllm/commit/288ca110f68d23909728627d3100e5a8db820aa2 Patch
https://github.com/vllm-project/vllm/pull/14228 Issue TrackingVendor Advisory
https://github.com/vllm-project/vllm/security/advisories/GHSA-x3m8-f7g5-qhm7 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2025-29783), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.