What’s Vulnerable › Vulnerabilities

CVE-2025-59953: LMdeploy has Remote Code Execution by Pickle Deserialization via zmq_rpc.call_and_response() in InterLM/lmdeploy

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-16 · updated 2026-10-14
• Weakness: CWE-502

Description

LMDeploy is a toolkit for compressing, deploying, and serving large language models. Starting in version 0.9.1 and prior to version 0.10.2, the LMdeploy implements an rpc server (AsyncRPCServer in zmq_rpc.py) for supporting the RPC communications. In its core functionality call_and_response(), I found it will directly use the pickles.loads() to deserialize the received messages without any sanitization, hence resulting in a remote code execution vulnerability by this RPC server. Version 0.10.2 contains a patch.

Affected products

• InternLM lmdeploy: from 0.9.1, < 0.10.2

References

• https://github.com/InternLM/lmdeploy/releases/tag/v0.10.2
• https://github.com/InternLM/lmdeploy/security/advisories/GHSA-5h8j-6crg-7rmw
• https://github.com/InternLM/lmdeploy/security/advisories/GHSA-5h8j-6crg-7rmw

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