CVE-2025-3162Public exploit

Local code execution via unsafe checkpoint deserialization

Published Apr 3, 2025 · Updated Apr 21, 2025

Insecure deserialization in InternLM LMDeploy 0.7.0 through 0.7.1 allows local users to execute code via a crafted PT checkpoint file. load_weight_ckpt passes non-safetensors checkpoint paths to torch.load without weights_only=True, allowing pickle reduction code in the file to run. Exploitation requires a local low-privileged user to supply and trigger loading of the file, executing code with the LMDeploy process's privileges.

CVSS severity7.8
High
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

Insecure deserialization in InternLM LMDeploy 0.7.0 through 0.7.1 allows local users to execute code via a crafted PT checkpoint file. load_weight_ckpt passes non-safetensors checkpoint paths to torch.load without weights_only=True, allowing pickle reduction code in the file to run. Exploitation requires a local low-privileged user to supply and trigger loading of the file, executing code with the LMDeploy process's privileges.

The record

CVE
CVE-2025-3162
Published
Apr 3, 2025
Updated
Apr 21, 2025
Vendor
InternLM
Product
LMDeploy
Classifications
CWE-502, CWE-20, T1203
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 3, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 21, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0.7.0
  2. Affected versionversion=0.7.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

InternLM · LMDeployversion=0.7.0; version=0.7.1

Published CVSS scores

5.3VulDBCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
4.3VulDBAV:L/AC:L/Au:S/C:P/I:P/A:P
7.8NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.8VulDBCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
CWE-20Improper Input Validation
T1203Exploitation for Client Execution

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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