CVE-2021-29894Network attack vector

Sensitive-data decryption via weak cryptographic algorithms

Published Sep 30, 2021 · Updated Sep 16, 2024

Weak cryptography in IBM Cloud Pak for Security 1.7.0.0 through 1.7.2.0 allows remote attackers to decrypt highly sensitive information. IBM has not disclosed the affected cryptographic component, algorithm, key material, or input path. Exploitation requires network access, no authentication or user interaction, and high attack complexity; reported impact is limited to confidentiality.

CVSS severity5.9
Medium
EPSS probability0.69%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Weak cryptography in IBM Cloud Pak for Security 1.7.0.0 through 1.7.2.0 allows remote attackers to decrypt highly sensitive information. IBM has not disclosed the affected cryptographic component, algorithm, key material, or input path. Exploitation requires network access, no authentication or user interaction, and high attack complexity; reported impact is limited to confidentiality.

The record

CVE
CVE-2021-29894
Published
Sep 30, 2021
Updated
Sep 16, 2024
Vendor
IBM
Product
IBM Cloud Pak for Security
Classifications
CWE-327
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 30, 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=1.7.0.0
  2. Affected versionversion=1.7.1.0
  3. Affected versionversion=1.7.2.0
  4. Affected versionversion=1.8.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IBM · IBM Cloud Pak for Securityversion=1.7.0.0; version=1.7.1.0; version=1.7.2.0; version=1.8.0.0

Published CVSS scores

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 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-327Use of a Broken or Risky Cryptographic Algorithm

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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