Staging Environment: Content and features may be unstable or change without notice.
Advisory details: pysec / PYSEC-2025-42
Advisory ID pysec/PYSEC-2025-42
Aliases CVE-2025-32444
GHSA-hj4w-hm2g-p6w5
Summary vLLM is a high-throughput and memory-efficient inference and serving engine for LLMs. Versions starting from 0.6.5 and prior to 0.8.5, having vLLM integration with mooncake, are vulnerable to remote code execution due to using pickle based serialization over unsecured ZeroMQ sockets. The vulnerable sockets were set to listen on all network interfaces, increasing the likelihood that an attacker is able to reach the vulnerable ZeroMQ sockets to carry out an attack. vLLM instances that do not make use of the mooncake integration are not vulnerable. This issue has been patched in version 0.8.5.
Status Published
Exploitability 0.5
Weighted Severity 4.9
Risk 2.5
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (0)
There are no known CWE.
System Score Found at
cvssv3.1 9.8 https://osv-vulnerabilities.storage.googleapis.com/PyPI/all.zip
Reference id Reference type URL
https://github.com/vllm-project/vllm/blob/32b14baf8a1f7195ca09484de3008063569b43c5/vllm/distributed/kv_transfer/kv_pipe/mooncake_pipe.py#L179
https://github.com/vllm-project/vllm/commit/a5450f11c95847cf51a17207af9a3ca5ab569b2c
https://github.com/vllm-project/vllm/security/advisories/GHSA-hj4w-hm2g-p6w5
https://github.com/vllm-project/vllm/security/advisories/GHSA-x3m8-f7g5-qhm7
GHSA-hj4w-hm2g-p6w5 https://github.com/advisories/GHSA-hj4w-hm2g-p6w5
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://osv-vulnerabilities.storage.googleapis.com/PyPI/all.zip
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: SSVCv2/E:N/A:Y/T:T/P:M/B:A/M:M/D:T/2025-04-30T13:08:21Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2025/32xxx/CVE-2025-32444.json

Source Advisory: vulnrichment/CVE-2025-32444

View SSVC decision tree 
[{'Exploitation': 'none'},
 {'Automatable': 'yes'},
 {'Technical Impact': 'total'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]