CVE-2024-48206Network attack vector

Remote code execution via unsafe node deserialization

Published Oct 29, 2024 · Updated Oct 30, 2024

Unsafe deserialization in Chainer 7.8.1.post1 allows remote attackers to execute arbitrary code through ChainerMN node traffic. The chainermn/communicators/_communication_utility.py component deserializes attacker-supplied serialized payloads exchanged between distributed nodes without validating their contents. Exploitation requires network reachability to the affected MPI communication path, needs no authentication or user interaction, and runs code with the Chainer process's privileges.

CVSS severity9.8
Critical
EPSS probability0.83%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unsafe deserialization in Chainer 7.8.1.post1 allows remote attackers to execute arbitrary code through ChainerMN node traffic. The chainermn/communicators/_communication_utility.py component deserializes attacker-supplied serialized payloads exchanged between distributed nodes without validating their contents. Exploitation requires network reachability to the affected MPI communication path, needs no authentication or user interaction, and runs code with the Chainer process's privileges.

The record

CVE
CVE-2024-48206
Published
Oct 29, 2024
Updated
Oct 30, 2024
Vendor
Preferred Networks
Product
Chainer
Classifications
CWE-502, T1210
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 29, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 30, 2024Record 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=7.8.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Preferred Networks · Chainerversion=7.8.1

Published CVSS scores

9.8CISA-ADPCVSS: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

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No observations available

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

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
T1210Exploitation of Remote Services

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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