Critical severity · published Sep 16, 2026
CVE-2025-59953
LMdeploy has Remote Code Execution by Pickle Deserialization via zmq_rpc.call_and_response() in InterLM/lmdeploy
9.8
CVSS
0.9%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 59% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LM
lmdeploy · InternLM
>= 0.9.1, < 0.10.2 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-59953
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-59953
github.com
https://github.com/InternLM/lmdeploy/releases/tag/v0.10.2
github.com
https://github.com/InternLM/lmdeploy/security/advisories/GHSA-5h8j-6crg-7rmw
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