CVE-2021-39020Network attack vector

Sensitive-data disclosure via URL parameters

Published May 5, 2022 · Updated Sep 17, 2024

Information disclosure in IBM Guardium Data Encryption 4.0.0.7 and earlier allows attackers to read sensitive data from retained URLs. The Vormetric Data Security Manager places sensitive values in URL parameters, allowing server logs, Referrer headers, and browser history to retain them. Exploitation requires a privileged user action and access to one of those URL records; the reported impact is limited to confidentiality.

CVSS severity2.0
Low
EPSS probability0.50%
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 Guardium Data Encryption 4.0.0.7 and earlier allows attackers to read sensitive data from retained URLs. The Vormetric Data Security Manager places sensitive values in URL parameters, allowing server logs, Referrer headers, and browser history to retain them. Exploitation requires a privileged user action and access to one of those URL records; the reported impact is limited to confidentiality.

The record

CVE
CVE-2021-39020
Published
May 5, 2022
Updated
Sep 17, 2024
Vendor
IBM
Product
Guardium Data Encryption
Classifications
CWE-200
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. May 5, 2022CVE 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=4.0.0
  2. Affected versionversion=5.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

IBM · Guardium Data Encryptionversion=4.0.0; version=5.0.0

Published CVSS scores

5.0NIST National Vulnerability DatabaseAV:N/AC:L/Au:N/C:P/I:N/A:N
2.0IBM CorporationCVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:N/A:N
5.3NIST National Vulnerability DatabaseCVSS: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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor

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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