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CVE Record

CVE-2022-21233: Improper isolation of shared resources in some Intel(R) Processors may allow a privileged user to potential...

Improper isolation of shared resources in some Intel(R) Processors may allow a privileged user to potentially enable information disclosure via local access.

MediumCVSS 5.5Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This is a local information-disclosure issue in some Intel processors. An attacker already able to run with low privileges on the system could potentially expose sensitive information through shared processor resources. The supplied sources do not describe remote exploitation or active exploitation, but processor issues can affect servers, desktops, and appliances broadly.

Executive priority

Treat this as a moderate infrastructure hygiene item. It is not shown as actively exploited or remotely reachable, but it affects processor isolation and confidentiality. Prioritize systems with sensitive workloads, shared users, virtualization, or regulated data, then fold remaining assets into normal firmware maintenance.

Technical view

CVE-2022-21233 is described as improper isolation of shared resources in some Intel processors. CVSS 3.1 is 5.5, with local access, low attack complexity, low privileges, no user interaction, unchanged scope, and high confidentiality impact. Affected versions are not enumerated in the bundle and are deferred to vendor references.

Likely exposure

Exposure is most likely on systems running affected Intel processors, including operating systems or appliances that depend on Intel microcode or vendor firmware. The bundle points to Intel, Debian intel-microcode, and NetApp advisories, but does not list exact models or product versions.

Exploitation context

The supplied CVE data requires local access and low privileges. It supports potential information disclosure only. CISA KEV status is false in the bundle, and no cited source here states active exploitation or public exploit availability.

Researcher notes

The bundle does not provide affected CPU model lists, microcode revision details, or vendor-specific fixed versions. Use the referenced Intel advisory as the authoritative source for processor scope and remediation. Avoid assuming exposure from the generic Intel processor label alone.

Mitigation direction

  • Review Intel SA-00657 for affected processor and microcode guidance.
  • Apply relevant BIOS, firmware, or microcode updates from trusted vendors.
  • For Debian LTS systems, review and apply the intel-microcode security update.
  • Check NetApp advisory guidance for affected NetApp products or appliances.
  • Limit local account access on shared or sensitive systems where feasible.

Validation and detection

  • Inventory Intel processor models across servers, endpoints, and appliances.
  • Compare processor and platform details against Intel SA-00657.
  • Verify installed BIOS, firmware, and microcode levels after updates.
  • Check Debian systems for applicable intel-microcode security update status.
  • Review NetApp product exposure against the referenced NetApp advisory.
Prepared
Confidence
medium
Sources
5

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.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

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CVE-2022-21233 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.5 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

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
4Source 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
5.5CVSS 3.1MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N1.83.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

5.5Medium
CVSS 3.1 vector shape for CVE-2022-21233Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

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
n/aIntel(R) ProcessorsSee referencesListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.