CVE-2021-29856Network attack vector

Denial of service via Map Creation page

Published Sep 20, 2021 · Updated Sep 17, 2024

Denial-of-service vulnerability in IBM Tivoli Netcool/OMNIbus WebGUI 8.1.0 allows remote authenticated users to interrupt service through Map Creation. The WebGUI Map Creation page processes attacker-controlled map input in a way that triggers a denial-of-service condition; IBM does not publish a more specific code-level operation. Access requires an authenticated WebGUI account, and the reported consequence is service interruption without confidentiality or integrity impact.

CVSS severity6.5
Medium
EPSS probability1.10%
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 vulnerability in IBM Tivoli Netcool/OMNIbus WebGUI 8.1.0 allows remote authenticated users to interrupt service through Map Creation. The WebGUI Map Creation page processes attacker-controlled map input in a way that triggers a denial-of-service condition; IBM does not publish a more specific code-level operation. Access requires an authenticated WebGUI account, and the reported consequence is service interruption without confidentiality or integrity impact.

The record

CVE
CVE-2021-29856
Published
Sep 20, 2021
Updated
Sep 17, 2024
Vendor
IBM
Product
Tivoli Netcool/OMNIbus
Classifications
T1499
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 20, 2021CVE 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=8.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IBM · Tivoli Netcool/OMNIbusversion=8.1.0

Published CVSS scores

6.5NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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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