CVE-2025-32375Public exploitNetwork attack vector

Unauthenticated code execution via attacker-selected pickle decoding

Published Apr 9, 2025 · Updated Apr 9, 2025

Insecure deserialization in BentoML's runner server before 1.4.8 allows remote attackers to execute arbitrary code via crafted POST requests. The request handler accepts attacker-selected container and format headers, then NdarrayContainer or PandasDataFrameContainer passes the untrusted body to pickle.loads. No authentication or user interaction is required, and successful exploitation grants command execution with the runner-server process's privileges.

CVSS severity9.8
Critical
EPSS probability52.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insecure deserialization in BentoML's runner server before 1.4.8 allows remote attackers to execute arbitrary code via crafted POST requests. The request handler accepts attacker-selected container and format headers, then NdarrayContainer or PandasDataFrameContainer passes the untrusted body to pickle.loads. No authentication or user interaction is required, and successful exploitation grants command execution with the runner-server process's privileges.

The record

CVE
CVE-2025-32375
Published
Apr 9, 2025
Updated
Apr 9, 2025
Vendor
BentoML
Product
BentoML
Classifications
CWE-502, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 9, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 9, 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=>= 1.0, < 1.4.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

BentoML · BentoMLversion=>= 1.0, < 1.4.8

Published CVSS scores

9.8GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
T1190Exploit Public-Facing Application

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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