CVE-2021-29875Network attack vector

Unauthenticated sensitive-information disclosure

Published Nov 2, 2021 · Updated Sep 17, 2024

Information disclosure in IBM InfoSphere Information Server 11.7 allows remote attackers to obtain sensitive data via network requests. IBM identifies insecure third-party domain access but does not disclose the affected component or the operation that exposes data. Exploitation requires no authentication or user interaction but has high complexity; the documented consequence is limited to confidentiality.

CVSS severity5.9
Medium
EPSS probability1.15%
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 InfoSphere Information Server 11.7 allows remote attackers to obtain sensitive data via network requests. IBM identifies insecure third-party domain access but does not disclose the affected component or the operation that exposes data. Exploitation requires no authentication or user interaction but has high complexity; the documented consequence is limited to confidentiality.

The record

CVE
CVE-2021-29875
Published
Nov 2, 2021
Updated
Sep 17, 2024
Vendor
IBM
Product
InfoSphere Information Server
Classifications
Unavailable
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 2, 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=11.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IBM · InfoSphere Information Serverversion=11.7

Published CVSS scores

5.2IBMCVSS:3.0/UI:N/C:H/AC:H/A:N/I:N/PR:N/AV:N/S:U/RL:O/E:U/RC:C
5.9IBMCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/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

No sourced classifications are available.

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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