CVE-2024-39745Network attack vector

Sensitive data decryption via weak cryptography

Published Aug 22, 2024 · Updated Mar 13, 2026

Weak cryptography in IBM Sterling Connect:Direct Web Services 6.0, 6.1, 6.2, and 6.3 allows remote attackers to decrypt sensitive data. The product's bundled IBM Java SE cryptographic implementation uses weaker-than-expected algorithms, but IBM has not disclosed the algorithm, protocol, or code path that selects them. Exploitation is unauthenticated over a network, requires high attack complexity, and affects confidentiality without reported data modification or service interruption.

CVSS severity5.9
Medium
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Weak cryptography in IBM Sterling Connect:Direct Web Services 6.0, 6.1, 6.2, and 6.3 allows remote attackers to decrypt sensitive data. The product's bundled IBM Java SE cryptographic implementation uses weaker-than-expected algorithms, but IBM has not disclosed the algorithm, protocol, or code path that selects them. Exploitation is unauthenticated over a network, requires high attack complexity, and affects confidentiality without reported data modification or service interruption.

The record

CVE
CVE-2024-39745
Published
Aug 22, 2024
Updated
Mar 13, 2026
Vendor
IBM
Product
IBM Sterling Connect:Direct Web Services
Classifications
CWE-327
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 22, 2024CVE publishedPublication date reported by the CVE source.
  2. Mar 13, 2026Record 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=6.0, 6.1, 6.2, 6.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IBM · IBM Sterling Connect:Direct Web Servicesversion=6.0, 6.1, 6.2, 6.3

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
5.9IBM CorporationCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
3.7IBM Security BulletinCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A: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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-327Use of a Broken or Risky Cryptographic Algorithm

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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