CVE-2025-3162: Lmdeploy LMDeploy Improper Input Validation Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-7vc5-mjwp-c8fq
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CVSS 5.3
CWE-502 CWE-20
Published
Advisory Summary

CVE-2025-3162 is a MODERATE (CVSS 5.3) lmdeploy improper input validation vulnerability vulnerability (CWE-502: Deserialization of Untrusted Data) affecting Lmdeploy libraries in the PyPI ecosystem. The issue involves lmdeploy improper input validation vulnerability. Remediation is available in the latest vendor maintenance releases.

CVE-2025-3162 at a Glance

CVE Identifier CVE-2025-3162
GHSA Identifier GHSA-7vc5-mjwp-c8fq
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-502: Deserialization of Untrusted Data
Affected Product Lmdeploy
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 5.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L).

Attack Vector Local (AV:L)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability Low (A:L)

How to Fix CVE-2025-3162

To remediate this vulnerability, upgrade all affected Lmdeploy dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

lmdeploy fixed: Latest secure release 
pip install lmdeploy>=Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show lmdeploy

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2025-3162, inspect your installed packages using pip:

pip show lmdeploy

Analyze the terminal output to locate any version of Lmdeploy in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The pip show lmdeploy command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-502: Deserialization of Untrusted Data, where the product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid. In Lmdeploy, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

A vulnerability was found in InternLM LMDeploy up to 0.7.1. It has been classified as critical. Affected is the function load_weight_ckpt of the file lmdeploy/lmdeploy/vl/model/utils.py of the component PT File Handler. The manipulation leads to deserialization. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used.

CVE-2025-3162 Affected Lmdeploy Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
lmdeploy
pypi/lmdeploy
PyPI
≤ 0.7.1

References

NVD — CVE-2025-3162 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-3162
Lmdeploy Source Repository REPOSITORY
https://github.com/InternLM/lmdeploy/issues/3255
Lmdeploy Source Repository REPOSITORY
https://github.com/InternLM/lmdeploy/issues/3255#issue-2918985270
Lmdeploy Source Repository REPOSITORY
https://github.com/InternLM/lmdeploy
vuldb.com/ WEB
https://vuldb.com/?ctiid.303108
vuldb.com/ WEB
https://vuldb.com/?id.303108
vuldb.com/ WEB
https://vuldb.com/?submit.542520

Frequently Asked Questions

What is CVE-2025-3162?
CVE-2025-3162 is a security vulnerability in Lmdeploy involving LMDeploy Improper Input Validation Vulnerability under CWE-502: Deserialization of Untrusted Data.
Which Lmdeploy versions are affected?
Affected versions include releases prior to current release patches across affected packages: lmdeploy.
What version fixes CVE-2025-3162?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is lmdeploy affected?
Yes, lmdeploy is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2025-3162?
CVE-2025-3162 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
What CWE is associated with CVE-2025-3162?
CVE-2025-3162 is classified under CWE-502: Deserialization of Untrusted Data (The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.).
How can I check PyPI dependencies for CVE-2025-3162?
Run the dependency tree command: 'pip show lmdeploy'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-7vc5-mjwp-c8fq",
  "modified" : "2025-04-24T14:36:52Z",
  "published" : "2025-04-03T15:31:20Z",
  "aliases" : [ "CVE-2025-3162" ],
  "summary" : "LMDeploy Improper Input Validation Vulnerability",
  "details" : "A vulnerability was found in InternLM LMDeploy up to 0.7.1. It has been classified as critical. Affected is the function load_weight_ckpt of the file lmdeploy/lmdeploy/vl/model/utils.py of the component PT File Handler. The manipulation leads to deserialization. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "lmdeploy"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "0.7.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-3162"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/InternLM/lmdeploy/issues/3255"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/InternLM/lmdeploy/issues/3255#issue-2918985270"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/InternLM/lmdeploy"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/?ctiid.303108"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/?id.303108"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/?submit.542520"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-20", "CWE-502" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-04-04T14:26:00Z",
    "nvd_published_at" : "2025-04-03T15:15:53Z"
  }
}