CVE-2020-4349Network attack vector

Sensitive-data decryption via weak GUI cryptography

Published May 27, 2020 · Updated Sep 16, 2024

Weak cryptography in the IBM Spectrum Scale GUI 5.0.0.0 through 5.0.4.4 allows remote attackers to decrypt sensitive information. IBM identifies weaker-than-expected algorithms but does not disclose the algorithm, cryptographic operation, or data flow that uses it. Successful exploitation discloses data without reported modification or service interruption; IBM has not published the required attack conditions.

CVSS severity5.9
Medium
EPSS probability0.79%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Weak cryptography in the IBM Spectrum Scale GUI 5.0.0.0 through 5.0.4.4 allows remote attackers to decrypt sensitive information. IBM identifies weaker-than-expected algorithms but does not disclose the algorithm, cryptographic operation, or data flow that uses it. Successful exploitation discloses data without reported modification or service interruption; IBM has not published the required attack conditions.

The record

CVE
CVE-2020-4349
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

Compare your product and version with the public record. A matching version still requires validation against your environment.

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

7.5NIST NVDCVSS:3.1/AV:N/AC:L/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

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-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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo