CVE-2020-4236Network attack vector

Authenticated service interruption via improper project content parsing

Published Mar 31, 2020 · Updated Sep 16, 2024

Denial of service in IBM Tivoli Netcool/Impact 7.1.0.0 through 7.1.0.17 allows remote authenticated users to interrupt service. The project management module improperly parses submitted project content, allowing crafted content to destabilize server processing. A valid authenticated session is required; IBM has not disclosed the parser locus, crafted content form, or whether interruption is a crash or hang.

CVSS severity6.5
Medium
EPSS probability1.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in IBM Tivoli Netcool/Impact 7.1.0.0 through 7.1.0.17 allows remote authenticated users to interrupt service. The project management module improperly parses submitted project content, allowing crafted content to destabilize server processing. A valid authenticated session is required; IBM has not disclosed the parser locus, crafted content form, or whether interruption is a crash or hang.

The record

CVE
CVE-2020-4236
Published
Mar 31, 2020
Updated
Sep 16, 2024
Vendor
IBM
Product
Tivoli Netcool/Impact
Classifications
T1499
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 31, 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?

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

  1. Affected versionversion=7.1.0
  2. Affected versionversion=7.1.0.17

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IBM · Tivoli Netcool/Impactversion=7.1.0; version=7.1.0.17

Published CVSS scores

6.5NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
4.0NVDAV:N/AC:L/Au:S/C:N/I:N/A:P
5.7IBM CorporationCVSS:3.0/S:U/UI:N/I:N/PR:L/A:H/AV:N/AC:L/C:N/RL:O/E:U/RC:C
6.5IBM CorporationCVSS:3.0/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499Endpoint Denial of Service

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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