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Full vulnerability report · 2020
CVE-2020-0668High confidence

An elevation of privilege vulnerability exists in the way that the Windows Kernel handles objects in memory, aka 'Windows Kernel Elevation of Privilege Vulnerability'

Microsoft · Windows

7.8HighCVSS 3.1
Recommended action
Within 7 days

High technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance.

Patch available
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityHighOperational priority:High, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • A structured source references public exploit or proof-of-concept material.
  • Exploitation requires an existing local or physical foothold with privileges.
  • EPSS is 25.86% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict local access and enforce least privilege on affected hosts.
  • Increase monitoring for the attack path and post-exploitation behaviour described in the report.

Verification

  1. Confirm that the asset runs Microsoft Windows and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: Within 30 daysRemediation target: Within 180 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Optional official sources

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

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

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-2020-2161

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 actionWithin 7 days

High technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance.

Patch available
01

What, why and how

An elevation of privilege vulnerability exists in the way that the Windows Kernel handles objects in memory, aka 'Windows Kernel Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2020-0669, CVE-2020-0670, CVE-2020-0671, CVE-2020-0672.

What

An elevation of privilege vulnerability exists in the way that the Windows Kernel handles objects in memory, aka 'Windows Kernel Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2020-0669, CVE-2020-0670, CVE-2020-0671, CVE-2020-0672.

Why

The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may gain additional privileges.

What

An elevation of privilege vulnerability exists in the way that the Windows Kernel handles objects in memory, aka 'Windows Kernel Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2020-0669, CVE-2020-0670, CVE-2020-0671, CVE-2020-0672.

Why

The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may gain additional privileges.

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.
Reference recorded

A structured CVE source labels at least one public reference as exploit material. BlackTree has not independently validated that it is safe, reliable or weaponised.

Likely attack path
local access → Incorrect Permission Assignment for Critical Resource → gain additional privileges
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-732 ↗

CWE-732: Incorrect Permission Assignment for Critical Resource. The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.

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:H/I:H/A:H

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.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
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.
Privilege escalationCWE-732Public exploit reference
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-081Multiples vulnérabilités dans Microsoft Windows

.cve.org/CVERecord?id=CVE-2020-0657 Référence CVE CVE-2020-0658 https://www.cve.org/CVERecord?id=CVE-2020-0658 Référence CVE CVE-2020-0659 https://www.cve.org/CVERecord?id=CVE-2020-0659 Référence CVE CVE-2020-0660 https://www.cve.org/CVERecord?id=CVE-2020-0660 Référence CVE CVE-2020-0661 https://www.cve.org/CVERecord?id=CVE-2020-0661 Référence CVE CVE-2020-0662 https://www.cve.org/CVERecord?id=CVE-2020-0662 Référence CVE CVE-2020-0665 https://www.cve.org/CVERecord?id=CVE-2020-0665 Référence CVE CVE-2020-0666 https://www.cve.org/CVERecord?id=CVE-2020-0666 Référence CVE CVE-2020-0667 https://www.cve.org/CVERecord?id=CVE-2020-0667 Référence CVE CVE-2020-0668 https://www.cve.org/CVERecord?id=CVE-2020-0668 Référence CVE CVE-2020-0669 https://www.cve.org/CVERecord?id=CVE-2020-0669 Référence CVE CVE-2020-0670 https://www.cve.org/CVERecord?id=CVE-2020-0670 Référence CVE CVE-2020-0671 https://www.cve.org/CVERecord?id=CVE-2020-0671 Référence CVE CVE-2020-0672 https://www.cve.org/CVERecord?id=CVE-2020-0672 Référence CVE CVE-2020-0675 https://www.cve.org/CVERecord?id=CVE-2020-0675 Référence CVE CVE-2020-0676 https://www.cve.org/CVERecord?id=CVE-2020-0676 Référence CVE CVE-2020-0677 https://www.cve.org/CVERecord?id=CVE-2020-0677 Référence CVE CVE-2020-0678 https://www.cve.org/CVERecord?id=CVE-2020-0678 Ré

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2020-001817複数の Microsoft Windows 製品における権限を昇格される脆弱性

複数の Microsoft Windows 製品には、Windows カーネルがメモリ内のオブジェクトの適切な処理に失敗した場合、権限を昇格される脆弱性が存在します。 ベンダは、本脆弱性を「Windows カーネルの特権の昇格の脆弱性」として公開しています。 本脆弱性は、CVE-2020-0668、CVE-2020-0669、CVE-2020-0671、CVE-2020-0672 とは異なる脆弱性です。

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2020-001816複数の Microsoft Windows 製品における権限を昇格される脆弱性

Microsoft Windows 10、Windows Server 2019、Windows Server には、Windows カーネルがメモリ内のオブジェクトを処理する方法に不備があるため、権限を昇格される脆弱性が存在します。 ベンダは、本脆弱性を「Windows カーネルの特権の昇格の脆弱性」として公開しています。 本脆弱性は、CVE-2020-0668、CVE-2020-0670、CVE-2020-0671、CVE-2020-0672 とは異なる脆弱性です。

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2020-001815複数の Microsoft Windows 製品における権限を昇格される脆弱性

複数の Microsoft Windows 製品には、Windows カーネルがメモリ内のオブジェクトを処理する方法に不備があるため、権限を昇格される脆弱性が存在します。 ベンダは、本脆弱性を「Windows カーネルの特権の昇格の脆弱性」として公開しています。 本脆弱性は、CVE-2020-0669、CVE-2020-0670、CVE-2020-0671、CVE-2020-0672 とは異なる脆弱性です。

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2020-001813複数の Microsoft Windows 製品における権限を昇格される脆弱性

複数の Microsoft Windows 製品には、Windows カーネルがメモリ内のオブジェクトの適切な処理に失敗した場合、権限を昇格される脆弱性が存在します。 ベンダは、本脆弱性を「Windows カーネルの特権の昇格の脆弱性」として公開しています。 本脆弱性は、CVE-2020-0668、CVE-2020-0669、CVE-2020-0670、CVE-2020-0672 とは異なる脆弱性です。

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2020-001812複数の Microsoft Windows 製品における権限を昇格される脆弱性

複数の Microsoft Windows 製品には、Windows カーネルがメモリ内のオブジェクトの適切な処理に失敗した場合、権限を昇格される脆弱性が存在します。 ベンダは、本脆弱性を「Windows カーネルの特権の昇格の脆弱性」として公開しています。 本脆弱性は、CVE-2020-0668、CVE-2020-0669、CVE-2020-0670、CVE-2020-0671 とは異なる脆弱性です。

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-5096MS 2월 보안 위협에 따른 정기 보안 업데이트 권고

- 권한상승 취약점(CVE-2020-0657, CVE-2020-0659, CVE-2020-0663, CVE-2020-0665, CVE-2020-0666, CVE-2020-0667, CVE-2020-0668, CVE-2020-0669, CVE-2020-0670, CVE-2020-0671, CVE-2020-0672, CVE-2020-0678, CVE-2020-0679, CVE-2020-0680, CVE-2020-0682, CVE-2020-0683, CVE-2020-0685, CVE-2020-0686, CVE-2020-0691, CVE-2020-0701, CVE-2020-0703, CVE-2020-0704, CVE-2020-0707, CVE-2020-0709, CVE-2020-0715, CVE-2020-0719, CVE-2020-0720, CVE-2020-0721, CVE-2020-0722, CVE-2020-0723, CVE-2020-0724, CVE-2020-0725, CVE-2020-0726, CVE-2020-0727, CVE-2020-0730, CVE-2020-0731, CVE-2020-0732, CVE-2020-0735, CVE-2020-0737, CVE-2020-0739, CVE-2020-0740, CVE-2020-0741, CVE-2020-0742, CVE-2020-0743, CVE-2020-0745, CVE-2020-0747, CVE-2020-0749, CVE-2020-0750, CVE-2020-0752, CVE-2020-0753, CVE-2020-0754, CVE-2020-0757, CVE-2020-0792, CVE-2020-0817, CVE-2020-0818)

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
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 Feb 2020 · Last source change 4 Aug 2024, 06:11 UTC · CWE-732 · Incorrect Permission Assignment for Critical Resource

CVE recordCVE.org · 5.1
CVSS sourceNIST NVD
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-2020-2161
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
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2020-2161↗CVE authority or vendor reference↗Public exploit reference↗Public exploit reference↗Official CVE record (CNA and ADP data)↗NVD record↗
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-2020-0668 · cve.blacktree.nl