CVE-2020-4379Network attack vector

Sensitive-data decryption via weak GUI cryptography

Published May 27, 2020 · Updated Sep 16, 2024

Weak cryptography in the management GUI of IBM Spectrum Scale 5.0.0.0 through 5.0.4.4 allows remote attackers to decrypt sensitive data. IBM identifies weaker-than-expected algorithms in the GUI but does not disclose the algorithm, protocol operation, or affected key material. Network access to protected GUI traffic is required; the documented consequence is disclosure only, without integrity or availability impact.

CVSS severity7.5
High
EPSS probability0.79%
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 the management GUI of IBM Spectrum Scale 5.0.0.0 through 5.0.4.4 allows remote attackers to decrypt sensitive data. IBM identifies weaker-than-expected algorithms in the GUI but does not disclose the algorithm, protocol operation, or affected key material. Network access to protected GUI traffic is required; the documented consequence is disclosure only, without integrity or availability impact.

The record

CVE
CVE-2020-4379
Published
May 27, 2020
Updated
Sep 16, 2024
Vendor
IBM
Product
IBM Spectrum Scale
Classifications
CWE-327
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 27, 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=5.0.0
  2. Affected versionversion=5.0.4.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IBM · IBM Spectrum Scaleversion=5.0.0; version=5.0.4.4

Published CVSS scores

5.0NIST NVDAV:N/AC:L/Au:N/C:P/I:N/A:N
5.9IBMCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
5.2IBMCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C

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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