CVE-2020-4832

Local information disclosure from temporary directories

Published Feb 5, 2021 · Updated Sep 16, 2024

Information disclosure in IBM PowerHA SystemMirror 7.2 allows local users to read sensitive data from temporary directories. After a discovery failure, PowerHA leaves sensitive information accessible in temporary directories, but IBM has not published the responsible file, process, or permission error. Local host access and a discovery failure are required; the documented consequence is disclosure without data modification or service interruption.

CVSS severity5.5
Medium
EPSS probability0.33%
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 PowerHA SystemMirror 7.2 allows local users to read sensitive data from temporary directories. After a discovery failure, PowerHA leaves sensitive information accessible in temporary directories, but IBM has not published the responsible file, process, or permission error. Local host access and a discovery failure are required; the documented consequence is disclosure without data modification or service interruption.

The record

CVE
CVE-2020-4832
Published
Feb 5, 2021
Updated
Sep 16, 2024
Vendor
IBM
Product
IBM PowerHA SystemMirror
Classifications
T1005
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 5, 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?

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  1. Affected versionversion=7.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

IBM · IBM PowerHA SystemMirrorversion=7.2

Published CVSS scores

6.2IBMCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
5.5NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
2.1NVDAV:L/AC:L/Au:N/C:P/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.

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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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1005Data from Local System

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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