CVE-2019-4550Network attack vector

Unauthenticated information disclosure via active debug code

Published Feb 4, 2020 · Updated Sep 17, 2024

Information disclosure in IBM Security Directory Server 6.4.0 allows remote attackers to obtain data through active debugging code. IBM has not disclosed the affected component, exposed entry point, or operation performed by the debugging code. The entry point is network-reachable without authentication and allows limited information disclosure, with no documented integrity or availability impact.

CVSS severity5.3
Medium
EPSS probability1.07%
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

Information disclosure in IBM Security Directory Server 6.4.0 allows remote attackers to obtain data through active debugging code. IBM has not disclosed the affected component, exposed entry point, or operation performed by the debugging code. The entry point is network-reachable without authentication and allows limited information disclosure, with no documented integrity or availability impact.

The record

CVE
CVE-2019-4550
Published
Feb 4, 2020
Updated
Sep 17, 2024
Vendor
IBM
Product
IBM Security Directory Server
Classifications
Unavailable
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 4, 2020CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 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=6.4.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IBM · IBM Security Directory Serverversion=6.4.0

Published CVSS scores

5.3IBMCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
5.0NVDAV:N/AC:L/Au:N/C:P/I:N/A:N
5.3NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
4.6IBMCVSS:3.0/C:L/UI:N/PR:N/S:U/AV:N/AC:L/I:N/A:N/RL:O/E:U/RC:C

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 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 exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

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