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Full vulnerability report · 2020
CVE-2020-1592High confidence

Windows Kernel Information Disclosure Vulnerability

Microsoft · Windows 10 Version 1803

4.4MediumCVSS 3.1
Recommended action
Scheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2020-12463

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionScheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
01

What, why and how

<p>An information disclosure vulnerability exists when the Windows kernel improperly initializes objects in memory.</p> <p>To exploit this vulnerability, an authenticated attacker could run a specially crafted application. An attacker who successfully exploited this vulnerability could obtain information to further compromise the user’s system.</p> <p>The update addresses the vulnerability by correcting how the Windows kernel initializes objects in memory.</p>

What

<p>An information disclosure vulnerability exists when the Windows kernel improperly initializes objects in memory.</p> <p>To exploit this vulnerability, an authenticated attacker could run a specially crafted application. An attacker who successfully exploited this vulnerability could obtain information to further compromise the user’s system.</p> <p>The update addresses the vulnerability by correcting how the Windows kernel initializes objects in memory.</p>

Why

The product does not initialize or incorrectly initializes a resource, which might leave the resource in an unexpected state when it is accessed or used.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may obtain information outside the intended access boundary.

What

<p>An information disclosure vulnerability exists when the Windows kernel improperly initializes objects in memory.</p> <p>To exploit this vulnerability, an authenticated attacker could run a specially crafted application. An attacker who successfully exploited this vulnerability could obtain information to further compromise the user’s system.</p> <p>The update addresses the vulnerability by correcting how the Windows kernel initializes objects in memory.</p>

Why

The product does not initialize or incorrectly initializes a resource, which might leave the resource in an unexpected state when it is accessed or used.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may obtain information outside the intended access boundary.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
local access → Improper Initialization → obtain information outside the intended access boundary
Attack surface
Local
Privileges required
Low: a basic authenticated account is required
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-665

CWE-665: Improper Initialization. The product does not initialize or incorrectly initializes a resource, which might leave the resource in an unexpected state when it is accessed or used.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CLowConfidentiality impact: A successful attack can cause a limited loss.ILowIntegrity impact: A successful attack can cause a limited loss.ANoneAvailability impact: No direct loss is represented by this metric.
Post-exploitation / living off the land
The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.
CWE-665
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

CERT-FR · French · CERTFR-2020-AVI-562Multiples vulnérabilités dans Microsoft Windows

.cve.org/CVERecord?id=CVE-2020-1376 Référence CVE CVE-2020-1471 https://www.cve.org/CVERecord?id=CVE-2020-1471 Référence CVE CVE-2020-1491 https://www.cve.org/CVERecord?id=CVE-2020-1491 Référence CVE CVE-2020-1507 https://www.cve.org/CVERecord?id=CVE-2020-1507 Référence CVE CVE-2020-1508 https://www.cve.org/CVERecord?id=CVE-2020-1508 Référence CVE CVE-2020-1532 https://www.cve.org/CVERecord?id=CVE-2020-1532 Référence CVE CVE-2020-1559 https://www.cve.org/CVERecord?id=CVE-2020-1559 Référence CVE CVE-2020-1589 https://www.cve.org/CVERecord?id=CVE-2020-1589 Référence CVE CVE-2020-1590 https://www.cve.org/CVERecord?id=CVE-2020-1590 Référence CVE CVE-2020-1592 https://www.cve.org/CVERecord?id=CVE-2020-1592 Référence CVE CVE-2020-1593 https://www.cve.org/CVERecord?id=CVE-2020-1593 Référence CVE CVE-2020-1596 https://www.cve.org/CVERecord?id=CVE-2020-1596 Référence CVE CVE-2020-1598 https://www.cve.org/CVERecord?id=CVE-2020-1598 Référence CVE CVE-2020-16851 https://www.cve.org/CVERecord?id=CVE-2020-16851 Référence CVE CVE-2020-16852 https://www.cve.org/CVERecord?id=CVE-2020-16852 Référence CVE CVE-2020-16853 https://www.cve.org/CVERecord?id=CVE-2020-16853 Référence CVE CVE-2020-16854 https://www.cve.org/CVERecord?id=CVE-2020-16854 Référence CVE CVE-2020-16879 https://www.cve.org/CVERecord?id=CVE-202

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
  • Windows 10 Version 1803: 10.0.0 < publication
  • Windows 10 Version 1809: 10.0.0 < publication
  • Windows Server 2019: 10.0.0 < publication
  • Windows Server 2019 (Server Core installation): 10.0.0 < publication
  • Windows 10 Version 1909: 10.0.0 < publication
  • Windows Server, version 1909 (Server Core installation): 10.0.0 < publication
  • Windows 10 Version 1903 for 32-bit Systems: 10.0.0 < publication
  • Windows 10 Version 1903 for x64-based Systems: 10.0.0 < publication
  • Windows 10 Version 1903 for ARM64-based Systems: 10.0.0 < publication
  • Windows Server, version 1903 (Server Core installation): 10.0.0 < publication
  • Windows 10 Version 2004: 10.0.0 < publication
  • Windows Server version 2004: 10.0.0 < publication
Fixed
An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
Action
Review the linked authoritative reference and apply the recorded fixed release appropriate to the affected product branch.
Workaround
No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 11 Sept 2020 · Last source change 4 Aug 2024, 06:39 UTC · CWE-665 · Improper Initialization

CVE recordCVE.org · 5.1
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2020-12463
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceNIST NVD
NVD statusNVD modified after enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2020-1592 · cve.blacktree.nl