CVE-2024-31879Network attack vector

Network-port denial of service via unsafe deserialization

Published May 18, 2024 · Updated Aug 2, 2024

Deserialization in Management Central in IBM i 7.2 through 7.4 allows remote attackers to interrupt network ports with crafted data. Management Central deserializes attacker-controlled data without establishing that the serialized object graph is trusted or safe. No authentication or user interaction is required, and successful exploitation can execute arbitrary code that leaves system network ports unavailable.

CVSS severity7.5
High
EPSS probability0.95%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Deserialization in Management Central in IBM i 7.2 through 7.4 allows remote attackers to interrupt network ports with crafted data. Management Central deserializes attacker-controlled data without establishing that the serialized object graph is trusted or safe. No authentication or user interaction is required, and successful exploitation can execute arbitrary code that leaves system network ports unavailable.

The record

CVE
CVE-2024-31879
Published
May 18, 2024
Updated
Aug 2, 2024
Vendor
IBM
Product
IBM i
Classifications
CWE-502, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 18, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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=7.2, 7.3, 7.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IBM · IBM iversion=7.2, 7.3, 7.4

Published CVSS scores

7.5IBM Corporation (CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5IBM Security BulletinCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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.

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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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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