CVE-2019-4679Network attack vector

Authenticated host information disclosure via logon response

Published Jan 28, 2020 · Updated Sep 17, 2024

Information disclosure in IBM Content Navigator 3.0CD allows remote authenticated users to obtain the host OS and version via a logon response. The response includes application-server operating-system and version details that should not be returned to the client. A valid account is required, and the exposed host details support follow-on attacks without directly changing data or interrupting service.

CVSS severity4.3
Medium
EPSS probability0.82%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in IBM Content Navigator 3.0CD allows remote authenticated users to obtain the host OS and version via a logon response. The response includes application-server operating-system and version details that should not be returned to the client. A valid account is required, and the exposed host details support follow-on attacks without directly changing data or interrupting service.

The record

CVE
CVE-2019-4679
Published
Jan 28, 2020
Updated
Sep 17, 2024
Vendor
IBM
Product
IBM Content Navigator
Classifications
T1592.002
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 28, 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

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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=3.0CD

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IBM · IBM Content Navigatorversion=3.0CD

Published CVSS scores

4.0NIST NVDAV:N/AC:L/Au:S/C:P/I:N/A:N
3.8IBMCVSS:3.0/PR:L/UI:N/I:N/AC:L/AV:N/C:L/A:N/S:U/E:U/RL:O/RC:C
4.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
4.3IBMCVSS:3.0/AV:N/AC:L/PR:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1592.002Gather Victim Host Information: Software

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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