CVE-2023-46183

Partition-data disclosure to system administrators

Published Feb 6, 2024 · Updated Aug 22, 2024

Information disclosure in IBM PowerVM Hypervisor firmware allows local users with system-administrator privileges to read partition data. IBM has not published the affected hypervisor locus or the operation that exposes partition-controlled data. Affected releases span FW950.00 through FW950.90, FW1020.00 through FW1020.40, and FW1030.00 through FW1030.30; the reported impact is confidentiality loss only.

CVSS severity5.3
Medium
EPSS probability0.17%
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 PowerVM Hypervisor firmware allows local users with system-administrator privileges to read partition data. IBM has not published the affected hypervisor locus or the operation that exposes partition-controlled data. Affected releases span FW950.00 through FW950.90, FW1020.00 through FW1020.40, and FW1030.00 through FW1030.30; the reported impact is confidentiality loss only.

The record

CVE
CVE-2023-46183
Published
Feb 6, 2024
Updated
Aug 22, 2024
Vendor
IBM
Product
PowerVM Hypervisor
Classifications
CWE-200, T1005
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Feb 6, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 22, 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=FW1020.00 <=FW1020.40
  2. Affected versionversion=FW1030.00 <=FW1030.30
  3. Affected versionversion=FW950.00 <=FW950.90

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

IBM · PowerVM Hypervisorversion=FW1020.00 <=FW1020.40; version=FW1030.00 <=FW1030.30; version=FW950.00 <=FW950.90

Published CVSS scores

5.3IBM CorporationCVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/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-200Exposure of Sensitive Information to an Unauthorized Actor
T1005Data from Local System

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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