CVE-2021-29838Network attack vector

Sensitive data interception via missing HSTS enforcement

Published Jan 26, 2022 · Updated Sep 17, 2024

Information disclosure in IBM Security Guardium Insights 3.0 allows remote attackers to intercept sensitive data via a network-path attack. The web interface fails to enforce HTTP Strict Transport Security, leaving browser connections exposed to protocol downgrade. Exploitation requires a man-in-the-middle position and is limited to disclosure, with no reported integrity or availability impact.

CVSS severity5.9
Medium
EPSS probability1.28%
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 Security Guardium Insights 3.0 allows remote attackers to intercept sensitive data via a network-path attack. The web interface fails to enforce HTTP Strict Transport Security, leaving browser connections exposed to protocol downgrade. Exploitation requires a man-in-the-middle position and is limited to disclosure, with no reported integrity or availability impact.

The record

CVE
CVE-2021-29838
Published
Jan 26, 2022
Updated
Sep 17, 2024
Vendor
IBM
Product
IBM Guardium Insights
Classifications
CWE-200, T1557
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 26, 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=3.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IBM · IBM Guardium Insightsversion=3.0

Published CVSS scores

5.9NIST NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
5.9IBM CorporationCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
4.3NIST NVDAV:N/AC:M/Au:N/C:P/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
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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