CVE-2020-4191

Sensitive-data decryption via weak cryptographic algorithms

Published Jun 4, 2020 · Updated Sep 16, 2024

Weak cryptography in IBM Security Guardium 10.5 through 11.1 allows local users with high privileges to decrypt highly sensitive information. IBM identifies weaker-than-expected cryptographic algorithms but does not disclose the affected component, algorithm, key handling, or cryptographic operation. Exploitation requires local access, high privileges, and high complexity; the documented consequence is disclosure of protected information without data alteration or service interruption.

CVSS severity4.1
Medium
EPSS probability0.21%
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 Security Guardium 10.5 through 11.1 allows local users with high privileges to decrypt highly sensitive information. IBM identifies weaker-than-expected cryptographic algorithms but does not disclose the affected component, algorithm, key handling, or cryptographic operation. Exploitation requires local access, high privileges, and high complexity; the documented consequence is disclosure of protected information without data alteration or service interruption.

The record

CVE
CVE-2020-4191
Published
Jun 4, 2020
Updated
Sep 16, 2024
Vendor
IBM
Product
IBM Security Guardium
Classifications
CWE-327
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Jun 4, 2020CVE 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=11.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

IBM · IBM Security Guardiumversion=11.1

Published CVSS scores

4.1IBM CorporationCVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N
2.1NIST NVDAV:L/AC:L/Au:N/C:P/I:N/A:N
4.4NIST NVDCVSS:3.1/AV:L/AC:L/PR:H/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)
Vectorlocal
Privilegesadmin
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.

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Technologies

Your stack

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Your stack

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