CVE-2023-24971Network attack vector

Service interruption via untrusted Java deserialization

Published Jul 31, 2023 · Updated Oct 18, 2024

Java deserialization in IBM B2B Advanced Communications 1.0.0.x and IBM MEIG 1.0.0.1 allows remote attackers to interrupt service. IBM has disclosed only that an unspecified component deserializes attacker-supplied Java objects without establishing trust; no endpoint, class, or object-stream path is public. IBM scores the path as unauthenticated, while NVD assesses low privileges; the reported consequence is availability loss only.

CVSS severity7.5
High
EPSS probability0.82%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Java deserialization in IBM B2B Advanced Communications 1.0.0.x and IBM MEIG 1.0.0.1 allows remote attackers to interrupt service. IBM has disclosed only that an unspecified component deserializes attacker-supplied Java objects without establishing trust; no endpoint, class, or object-stream path is public. IBM scores the path as unauthenticated, while NVD assesses low privileges; the reported consequence is availability loss only.

The record

CVE
CVE-2023-24971
Published
Jul 31, 2023
Updated
Oct 18, 2024
Vendor
IBM
Product
B2B Advanced Communications
Classifications
CWE-502, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 31, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 18, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=1.0.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IBM · B2B Advanced Communicationsversion=1.0.0.0
IBM · Multi-Enterprise Integration Gatewayversion=1.0.0.1

Published CVSS scores

7.5IBM CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/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
T1499.004Application or System Exploitation

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo