CVE-2019-4654Network attack vector

Trusted-entity spoofing via improper certificate validation

Published Apr 15, 2020 · Updated Sep 16, 2024

Improper certificate validation in IBM QRadar 7.3.0 through 7.3.3 Patch 2 allows man-in-the-middle attackers to spoof trusted entities. IBM has not disclosed which QRadar connection or certificate property is left unvalidated or incorrectly validated. Exploitation requires a network position between QRadar and the trusted peer, and the published impact is limited to information exposure.

CVSS severity3.7
Low
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper certificate validation in IBM QRadar 7.3.0 through 7.3.3 Patch 2 allows man-in-the-middle attackers to spoof trusted entities. IBM has not disclosed which QRadar connection or certificate property is left unvalidated or incorrectly validated. Exploitation requires a network position between QRadar and the trusted peer, and the published impact is limited to information exposure.

The record

CVE
CVE-2019-4654
Published
Apr 15, 2020
Updated
Sep 16, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1557
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 15, 2020CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

3.7IBMCVSS: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.

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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

T1557Adversary-in-the-Middle

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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