CVE-2025-29783: vllm-project vllm Deserialization of Untrusted Data
Vulnerability summary
CVE-2025-29783 is a critical (CVSS 9.1) Deserialization of Untrusted Data vulnerability in vllm-project vllm. EPSS estimates a 0.73% chance of exploitation in the next 30 days, higher than 53.6% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 0 · Related 4Timeline
- 19-03-2025PublishedVulnerability first disclosed.
- 22-03-2025Last modifiedVulnerability information updated.
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 metrics
3 scores · 3 sources · 1 version- OSV · PypiEcosystem advisory · calculated9.0CriticalCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:HDiffers
- NVDNIST9.0CriticalCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:HDiffers
EPSS trend
Probability
0.73%
Chance of exploitation in the next 30 days
Percentile
54%
Versus all other CVEs
30-day change
+0.01 pp
From 0.73% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
PyPI1 product
- vllm< 288ca110f68d23909728627d3100e5a8db820aa2 | ≥ 0.6.5, < 0.8.0
Vllm1 product
- vllm≥ 0.6.5, < 0.8.0
Vllm-project1 product
- vllm≥ 0.6.5, < 0.8.0
3 vendors · 3 products
References
6 links- github.com/vllm-project/vllm/security/advisories/GHSA-x3m8-f7g5-qhm7X Refsource CONFIRMWEBAdvisoryVendor Advisory
- github.com/vllm-project/vllm/commit/288ca110f68d23909728627d3100e5a8db820aa2X Refsource MISCWEBFIXPatch
- github.com/vllm-project/vllmPACKAGE