CVE-2021-20428Network attack vector

Information disclosure via verbose Job History errors

Published May 24, 2021 · Updated Sep 16, 2024

Information exposure in IBM Security Guardium 10.5 through 11.3 allows remote attackers to read sensitive data through browser errors. The Job History report returns a detailed technical error message to the browser instead of suppressing internal details. No authentication or user interaction is required; disclosed details can support further attacks, but IBM does not identify the exact data exposed.

CVSS severity5.3
Medium
EPSS probability1.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information exposure in IBM Security Guardium 10.5 through 11.3 allows remote attackers to read sensitive data through browser errors. The Job History report returns a detailed technical error message to the browser instead of suppressing internal details. No authentication or user interaction is required; disclosed details can support further attacks, but IBM does not identify the exact data exposed.

The record

CVE
CVE-2021-20428
Published
May 24, 2021
Updated
Sep 16, 2024
Vendor
IBM
Product
IBM Security Guardium
Classifications
CWE-209
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 24, 2021CVE 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=11.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IBM · IBM Security Guardiumversion=11.2

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

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

CWE-209Generation of Error Message Containing Sensitive Information

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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