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CVE Record

CVE-2019-4536: IBM i 7.4 users who have done a Restore User Profile (RSTUSRPRF) on a system which has been configured with...

IBM i 7.4 users who have done a Restore User Profile (RSTUSRPRF) on a system which has been configured with Db2 Mirror for i might have user profiles with elevated privileges caused by incorrect processing during a restore of multiple user profiles. A user with restore privileges could exploit this vulnerability to obtain elevated privileges on the restored system. IBM X-Force ID: 165592.

MediumCVSS 6.7Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This affects IBM i 7.4 systems configured with Db2 Mirror for i after restoring multiple user profiles with RSTUSRPRF. Incorrect restore processing can leave restored profiles with too much privilege. The business risk is unauthorized privilege escalation on a sensitive IBM i system, but the scenario is specific and requires restore-related access.

Executive priority

Treat as a targeted operational risk, not an internet-wide emergency. Prioritize IBM i systems that run sensitive business workloads and have Db2 Mirror plus recent profile restore activity. Remediation should be scheduled promptly, especially where restore privileges are broadly assigned.

Technical view

CVE-2019-4536 is a local privilege escalation in IBM i 7.4 involving Restore User Profile on systems using Db2 Mirror for i. Incorrect processing during multiple-profile restore may assign elevated privileges to user profiles. IBM rates it CVSS 3.0 6.7 with high confidentiality and integrity impact, high attack complexity, and no user interaction.

Likely exposure

Exposure appears limited to IBM i 7.4 environments using Db2 Mirror for i where RSTUSRPRF has restored multiple user profiles. Organizations without IBM i 7.4, without Db2 Mirror for i, or without relevant restore activity are less likely to be affected based on the supplied sources.

Exploitation context

The supplied sources do not show active exploitation, and the CVE is not listed as KEV. The described attacker is a user with restore privileges who could obtain elevated privileges on the restored system. Evidence is incomplete on public exploit availability, observed attacks, and exact affected operational sequences.

Researcher notes

Key constraints are IBM i 7.4, Db2 Mirror for i, and RSTUSRPRF involving multiple user profiles. The source bundle does not provide CWE mapping, exact PTF identifiers, or public exploit evidence. Validate exposure through configuration, restore history, privilege review, and IBM advisory status.

Mitigation direction

  • Review IBM advisory ibm11071586 for official remediation details.
  • Apply the vendor-provided fix for affected IBM i 7.4 systems.
  • Audit restored user profiles for unexpected elevated privileges.
  • Restrict restore privileges to tightly controlled administrative users.
  • Check IBM X-Force entry 165592 for updated vendor notes.

Validation and detection

  • Confirm whether IBM i 7.4 is deployed.
  • Confirm whether Db2 Mirror for i is configured.
  • Identify recent RSTUSRPRF activity involving multiple user profiles.
  • Review restored profiles for excessive authorities or group membership.
  • Verify IBM advisory remediation is installed or scheduled.
Prepared
Confidence
medium
Sources
4

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

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CVE-2019-4536 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
6.7 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/AV:L/I:H/S:U/UI:N/PR:N/C:H/AC:H/A:N/RL:O/RC:C/E:U

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
6.7CVSS 3.0MediumCVSS:3.0/AV:L/I:H/S:U/UI:N/PR:N/C:H/AC:H/A:N/RL:O/RC:C/E:U1.45.2Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

6.7Medium
CVSS 3.0 vector shape for CVE-2019-4536Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AV:L/I:H/S:U/UI:N/PR:N/C:H/AC:H/A:N/RL:O/RC:C/E:U

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
IBMi7.4Listed
Weakness

CWE details

No CWE listed

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