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Full vulnerability report · 2020
CVE-2020-1020High confidence

Microsoft Windows Adobe Font Manager Library Remote Code Execution Vulnerability

Microsoft · Windows

8.8HighCVSS 3.1
Recommended action
Patch now

CISA confirms exploitation in the wild and lists 2022-05-03 as the remediation due date.

Patch available
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityHighOperational priority:Critical, raised one band.upgradedsince 3 Nov 2021

Evidence used

  • CISA confirms exploitation in the wild.
  • EPSS is 65.04% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict the affected network interface to trusted sources where business-safe.
  • 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 3 daysRemediation target: Within 90 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.

Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current
SEVD-2021-285-05 · CSAF 2.0 · revision 1.0.0 · finalSchneider Electric CPCERTConext™ Advisor & Conext™ Control V2
3 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • Schneider Electric Conext™ Advisor 2 Cloud 2.02 and below
  • Schneider Electric Conext™ Advisor 2 Gateway 1.28.45 and below
  • Schneider Electric Conext™ Control V2 Gateway 2.6 and below
Summary
A remote code execution vulnerability exists in Microsoft Windows when the Windows Adobe Type Manager Library improperly handles a specially-crafted multi-master font - Adobe Type 1 PostScript format. For all systems except Windows 10, an attacker who successfully exploited the vulnerability could execute code remotely, aka 'Adobe Font Manager Library Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2020-0938.
Remediation
Version Windows 10 of the Microsoft Windows includes a fix for this vulnerability and is available for download here: • https://www.microsoft.com/en-in/software-download/windows10 • Reboot is required
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-2020-11916

CISA KEV mirrored by ENISA

A remote code execution vulnerability exists in Microsoft Windows when the Windows Adobe Type Manager Library improperly handles a specially-crafted multi-master font - Adobe Type 1 PostScript format.For all systems except Windows 10, an attacker who successfully exploited the vulnerability could execute code remotely, aka 'Adobe Font Manager Library Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2020-0938.

EUVD state
Present in the current official mapping
Known exploitation
Recorded by ENISA since 3 Nov 2021. Evidence sources: cisa_kev.
ENISA score
8.8 · CVSS 3.1
Advisory evidence
No linked advisory details stored yet
Recommended actionPatch now

CISA confirms exploitation in the wild and lists 2022-05-03 as the remediation due date.

Patch available
01

What, why and how

Microsoft Windows Adobe Font Manager Library contains an unspecified vulnerability when handling specially crafted multi-master fonts (Adobe Type 1 PostScript format) that allows for remote code execution for all systems except Windows 10. For systems running Windows 10, an attacker who successfully exploited the vulnerability could execute code in an AppContainer sandbox context with limited privileges and capabilities.

What

Microsoft Windows Adobe Font Manager Library contains an unspecified vulnerability when handling specially crafted multi-master fonts (Adobe Type 1 PostScript format) that allows for remote code execution for all systems except Windows 10. For systems running Windows 10, an attacker who successfully exploited the vulnerability could execute code in an AppContainer sandbox context with limited privileges and capabilities.

Why

A bounds error lets data be written beyond the intended memory region, potentially corrupting control data.

How

An attacker operating through a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may execute code or commands in the affected security context.

What

Microsoft Windows Adobe Font Manager Library contains an unspecified vulnerability when handling specially crafted multi-master fonts (Adobe Type 1 PostScript format) that allows for remote code execution for all systems except Windows 10. For systems running Windows 10, an attacker who successfully exploited the vulnerability could execute code in an AppContainer sandbox context with limited privileges and capabilities.

Why

A bounds error lets data be written beyond the intended memory region, potentially corrupting control data.

How

An attacker operating through a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may execute code or commands in the affected security context.

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.
Confirmed in the wild

CISA added this CVE to its Known Exploited Vulnerabilities catalogue on 2021-11-03.

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
a network path → Out-of-bounds Write → execute code or commands in the affected security context
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
Required interaction required
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-787 ↗

CWE-787: Out-of-bounds Write. The product writes data past the end, or before the beginning, of the intended buffer.

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

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

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UIRequiredUser interaction: Another user must perform an action for exploitation to succeed.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
After compromise, an attacker may use built-in shells, scripting engines, scheduled tasks and native network utilities for discovery, persistence or movement. This is a plausible LoTL path, not evidence that it has occurred for every attack.
NetworkUnauthenticatedRemote code executionCWE-787CISA KEV
A

Official authority intelligence

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

ENISA EUVD · EUVD-2020-11916Known-exploited evidence recorded

A remote code execution vulnerability exists in Microsoft Windows when the Windows Adobe Type Manager Library improperly handles a specially-crafted multi-master font - Adobe Type 1 PostScript format.For all systems except Windows 10, an attacker who successfully exploited the vulnerability could execute code remotely, aka 'Adobe Font Manager Library Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2020-0938.

Official EUVD record ↗
Canadian Centre for Cyber Security · English · AV20-104Microsoft security advisory – April 2020 monthly rollup

On 14 April 2020 Microsoft released security updates to address multiple vulnerabilities affecting some of its products. This rollup provides fixes for 19 critical vulnerabilities.Of note are a pair of previously reported critical remote code execution vulnerabilities found in the Adobe Type Manager Library component of Microsoft Windows operating systems. These vulnerabilities, tracked as CVE-2020-0938 and CVE-2020-1020, have been patched as part of this rollup. Also of note is a critical remote code execution vulnerability, tracked as CVE-2020-0968, which exists in the way that the scripting engine handles objects in memory in Internet Explorer. Successful exploitation could allow an actor to take control of an affected system.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20200422Security Bulletin 22 Apr 2020

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 22 Apr 2020, published on 22 April 2020. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2021-AVI-772Multiples vulnérabilités dans les produits Schneider

ve.org/CVERecord?id=CVE-2019-0803 Référence CVE CVE-2019-0859 https://www.cve.org/CVERecord?id=CVE-2019-0859 Référence CVE CVE-2019-1040 https://www.cve.org/CVERecord?id=CVE-2019-1040 Référence CVE CVE-2019-11135 https://www.cve.org/CVERecord?id=CVE-2019-11135 Référence CVE CVE-2020-0601 https://www.cve.org/CVERecord?id=CVE-2020-0601 Référence CVE CVE-2020-0609 https://www.cve.org/CVERecord?id=CVE-2020-0609 Référence CVE CVE-2020-0610 https://www.cve.org/CVERecord?id=CVE-2020-0610 Référence CVE CVE-2020-0796 https://www.cve.org/CVERecord?id=CVE-2020-0796 Référence CVE CVE-2020-0938 https://www.cve.org/CVERecord?id=CVE-2020-0938 Référence CVE CVE-2020-1020 https://www.cve.org/CVERecord?id=CVE-2020-1020 Référence CVE CVE-2020-1350 https://www.cve.org/CVERecord?id=CVE-2020-1350 Référence CVE CVE-2020-13987 https://www.cve.org/CVERecord?id=CVE-2020-13987 Référence CVE CVE-2020-1472 https://www.cve.org/CVERecord?id=CVE-2020-1472 Référence CVE CVE-2020-17438 https://www.cve.org/CVERecord?id=CVE-2020-17438 Référence CVE CVE-2021-22800 https://www.cve.org/CVERecord?id=CVE-2021-22800 Référence CVE CVE-2021-22801 https://www.cve.org/CVERecord?id=CVE-2021-22801 Référence CVE CVE-2021-22802 https://www.cve.org/CVERecord?id=CVE-2021-22802 Référence CVE CVE-2021-22803 https://www.cve.org/CVERecord?id=CVE-2

Official advisory ↗
CERT-FR · French · CERTFR-2020-AVI-224Multiples vulnérabilités dans Microsoft Windows

.cve.org/CVERecord?id=CVE-2020-1006 Référence CVE CVE-2020-1007 https://www.cve.org/CVERecord?id=CVE-2020-1007 Référence CVE CVE-2020-1008 https://www.cve.org/CVERecord?id=CVE-2020-1008 Référence CVE CVE-2020-1009 https://www.cve.org/CVERecord?id=CVE-2020-1009 Référence CVE CVE-2020-1011 https://www.cve.org/CVERecord?id=CVE-2020-1011 Référence CVE CVE-2020-1014 https://www.cve.org/CVERecord?id=CVE-2020-1014 Référence CVE CVE-2020-1015 https://www.cve.org/CVERecord?id=CVE-2020-1015 Référence CVE CVE-2020-1016 https://www.cve.org/CVERecord?id=CVE-2020-1016 Référence CVE CVE-2020-1017 https://www.cve.org/CVERecord?id=CVE-2020-1017 Référence CVE CVE-2020-1020 https://www.cve.org/CVERecord?id=CVE-2020-1020 Référence CVE CVE-2020-1027 https://www.cve.org/CVERecord?id=CVE-2020-1027 Référence CVE CVE-2020-1029 https://www.cve.org/CVERecord?id=CVE-2020-1029 Référence CVE CVE-2020-1094 https://www.cve.org/CVERecord?id=CVE-2020-1094 Gestion détaillée du document le 15 avril 2020 Version initiale Alertes Avis Bulletins d’actualités Mentions légales Conditions générales À propos Contact cyber.gouv.fr service-public.fr legifrance.gouv.fr info.gouv.fr france.fr info.gouv.fr/risques Premier Ministre / Secrétariat Général de la Défense et de la Sécurité Nationale / Agence nationale de la sécurité des systèmes

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2020-002746Adobe Type Manager Library におけるリモートコード実行の脆弱性

Windows Adobe Type Manager Library には、Adobe Type 1 フォント形式を不適切に処理することによるリモートコード実行の脆弱性が存在します。マイクロソフトによると既に本脆弱性を悪用した攻撃を確認しているとのことです。

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2020-004468複数の Microsoft Windows 製品におけるリモートでコードを実行される脆弱性

複数の Microsoft Windows 製品には、Windows Adobe Type Manager ライブラリが巧妙別に細工されたマルチマスタフォントの Adobe Type 1 PostScript 形式を適切に処理しない場合、、リモートでコードを実行されるが存在します。 ベンダは、本脆弱性を「Adobe フォント ライブラリでコードがリモートで実行される脆弱性」として公開しています。 本脆弱性は、CVE-2020-1020 とは異なる脆弱性です。

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2020-010521WordPress 用 Elementor プラグインにおけるクロスサイトスクリプティングの脆弱性

WordPress 用 Elementor プラグインには、クロスサイトスクリプティングの脆弱性が存在します。

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-5127MS 4월 보안 위협에 따른 정기 보안 업데이트 권고

- 원격코드실행 취약점(CVE-2020-0687, CVE-2020-0889, CVE-2020-0907, CVE-2020-0910, CVE-2020-0938, CVE-2020-0948, CVE-2020-0949, CVE-2020-0950, CVE-2020-0953, CVE-2020-0959, CVE-2020-0960, CVE-2020-0964, CVE-2020-0965, CVE-2020-0969, CVE-2020-0969, CVE-2020-0970, CVE-2020-0970, CVE-2020-0988, CVE-2020-0992, CVE-2020-0994, CVE-2020-0995, CVE-2020-0999, CVE-2020-1008, CVE-2020-1020)

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
Schneider Electric Microsoft Windows 10
Action
Version Windows 10 of the Microsoft Windows includes a fix for this vulnerability and is available for download here: • https://www.microsoft.com/en-in/software-download/windows10 • Reboot is required
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 15 Apr 2020 · Last source change 21 Oct 2025, 23:35 UTC · CWE-787 · Out-of-bounds Write

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-2020-11916
Product sourceVendor CSAF · Schneider Electric CPCERT
Remediation sourceVendor CSAF · Schneider Electric CPCERT
CWE sourceCISA ADP
NVD statusNVD enriched

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

Material change intelligence

What changed after publication

View recent updates ↗
  1. Vendor guidanceAuthoritative vendor guidance changed: added remediation: portal.msrc.microsoft.com/CVE-2020-1020; removed remediation: download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-285-05&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2021-285-05_Conext_Advisor_and_Conext_Control_Security_Notification.pdf.
    Before
    patch: portal.msrc.microsoft.com/CVE-2020-1020 · remediation: download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-285-05&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2021-285-05_Conext_Advisor_and_Conext_Control_Security_Notification.pdf
    After
    patch: portal.msrc.microsoft.com/CVE-2020-1020 · remediation: portal.msrc.microsoft.com/CVE-2020-1020
    portal.msrc.microsoft.com ↗
  2. Affected versionsThe structured affected or fixed version information changed.
    Before
    Windows: 10 Version 1803 for 32-bit Systems, 10 Version 1803 for x64-based Systems, 10 Version 1803 for ARM64-based Systems, 10 Version 1809 for 32-bit Systems, 10 Version 1809 for x64-based Systems, 10 Version 1809 for ARM64-based Systems, 10 Version 1709 for 32-bit Systems, 10 Version 1709 for x64-based Systems, 10 Version 1709 for ARM64-based Systems, 10 for 32-bit Systems, 10 for x64-based Systems, 10 Version 1607 for 32-bit Systems, 10 Version 1607 for x64-based Systems, 7 for 32-bit Systems Service Pack 1, 7 for x64-based Systems Service Pack 1, 8.1 for 32-bit systems, 8.1 for x64-based systems, RT 8.1; Windows Server: version 1803 (Core Installation), 2019, 2019 (Core installation), 2016, 2016 (Core installation), 2008 for 32-bit Systems Service Pack 2, 2008 for 32-bit Systems Service Pack 2 (Core installation), 2008 for Itanium-Based Systems Service Pack 2, 2008 for x64-based Systems Service Pack 2, 2008 for x64-based Systems Service Pack 2 (Core installation), 2008 R2 for Itanium-Based Systems Service Pack 1, 2008 R2 for x64-based Systems Service Pack 1, 2008 R2 for x64-based Systems Service Pack 1 (Core installation), 2012, 2012 (Core installation), 2012 R2, 2012 R2 (Core installation); Windows 10 Version 1909 for 32-bit Systems: unspecified; Windows 10 Version 1909 for x64-based Systems: unspecified; Windows 10 Version 1909 for ARM64-based Systems: unspecified; Windows Server, version 1909 (Server Core installation): unspecified; Windows 10 Version 1903 for 32-bit Systems: unspecified; Windows 10 Version 1903 for x64-based Systems: unspecified; Windows 10 Version 1903 for ARM64-based Systems: unspecified; Windows Server, version 1903 (Server Core installation): unspecified · Fixed: Version Windows 10 of the Microsoft Windows includes a fix for this vulnerability and is available for download here: • https://www.microsoft.com/en-in/software-download/windows10 • Reboot is required
    After
    Windows: 10 Version 1803 for 32-bit Systems, 10 Version 1803 for x64-based Systems, 10 Version 1803 for ARM64-based Systems, 10 Version 1809 for 32-bit Systems, 10 Version 1809 for x64-based Systems, 10 Version 1809 for ARM64-based Systems, 10 Version 1709 for 32-bit Systems, 10 Version 1709 for x64-based Systems, 10 Version 1709 for ARM64-based Systems, 10 for 32-bit Systems, 10 for x64-based Systems, 10 Version 1607 for 32-bit Systems, 10 Version 1607 for x64-based Systems, 7 for 32-bit Systems Service Pack 1, 7 for x64-based Systems Service Pack 1, 8.1 for 32-bit systems, 8.1 for x64-based systems, RT 8.1; Windows Server: version 1803 (Core Installation), 2019, 2019 (Core installation), 2016, 2016 (Core installation), 2008 for 32-bit Systems Service Pack 2, 2008 for 32-bit Systems Service Pack 2 (Core installation), 2008 for Itanium-Based Systems Service Pack 2, 2008 for x64-based Systems Service Pack 2, 2008 for x64-based Systems Service Pack 2 (Core installation), 2008 R2 for Itanium-Based Systems Service Pack 1, 2008 R2 for x64-based Systems Service Pack 1, 2008 R2 for x64-based Systems Service Pack 1 (Core installation), 2012, 2012 (Core installation), 2012 R2, 2012 R2 (Core installation); Windows 10 Version 1909 for 32-bit Systems: unspecified; Windows 10 Version 1909 for x64-based Systems: unspecified; Windows 10 Version 1909 for ARM64-based Systems: unspecified; Windows Server, version 1909 (Server Core installation): unspecified; Windows 10 Version 1903 for 32-bit Systems: unspecified; Windows 10 Version 1903 for x64-based Systems: unspecified; Windows 10 Version 1903 for ARM64-based Systems: unspecified; Windows Server, version 1903 (Server Core installation): unspecified · 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.
    CNA ↗
  3. Affected versionsThe structured affected or fixed version information changed.
    Before
    10 Version 1803 for 32-bit Systems; 10 Version 1803 for x64-based Systems; 10 Version 1803 for ARM64-based Systems; 10 Version 1809 for 32-bit Systems; 10 Version 1809 for x64-based Systems; 10 Version 1809 for ARM64-based Systems; 10 Version 1709 for 32-bit Systems; 10 Version 1709 for x64-based Systems · 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.
    After
    Windows: 10 Version 1803 for 32-bit Systems, 10 Version 1803 for x64-based Systems, 10 Version 1803 for ARM64-based Systems, 10 Version 1809 for 32-bit Systems, 10 Version 1809 for x64-based Systems, 10 Version 1809 for ARM64-based Systems, 10 Version 1709 for 32-bit Systems, 10 Version 1709 for x64-based Systems, 10 Version 1709 for ARM64-based Systems, 10 for 32-bit Systems, 10 for x64-based Systems, 10 Version 1607 for 32-bit Systems, 10 Version 1607 for x64-based Systems, 7 for 32-bit Systems Service Pack 1, 7 for x64-based Systems Service Pack 1, 8.1 for 32-bit systems, 8.1 for x64-based systems, RT 8.1; Windows Server: version 1803 (Core Installation), 2019, 2019 (Core installation), 2016, 2016 (Core installation), 2008 for 32-bit Systems Service Pack 2, 2008 for 32-bit Systems Service Pack 2 (Core installation), 2008 for Itanium-Based Systems Service Pack 2, 2008 for x64-based Systems Service Pack 2, 2008 for x64-based Systems Service Pack 2 (Core installation), 2008 R2 for Itanium-Based Systems Service Pack 1, 2008 R2 for x64-based Systems Service Pack 1, 2008 R2 for x64-based Systems Service Pack 1 (Core installation), 2012, 2012 (Core installation), 2012 R2, 2012 R2 (Core installation); Windows 10 Version 1909 for 32-bit Systems: unspecified; Windows 10 Version 1909 for x64-based Systems: unspecified; Windows 10 Version 1909 for ARM64-based Systems: unspecified; Windows Server, version 1909 (Server Core installation): unspecified; Windows 10 Version 1903 for 32-bit Systems: unspecified; Windows 10 Version 1903 for x64-based Systems: unspecified; Windows 10 Version 1903 for ARM64-based Systems: unspecified; Windows Server, version 1903 (Server Core installation): unspecified · 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.
    CNA ↗
  4. Affected versionsThe structured affected or fixed version information changed.
    Before
    Windows: 10 Version 1803 for 32-bit Systems, 10 Version 1803 for x64-based Systems, 10 Version 1803 for ARM64-based Systems, 10 Version 1809 for 32-bit Systems, 10 Version 1809 for x64-based Systems, 10 Version 1809 for ARM64-based Systems, 10 Version 1709 for 32-bit Systems, 10 Version 1709 for x64-based Systems, 10 Version 1709 for ARM64-based Systems, 10 for 32-bit Systems, 10 for x64-based Systems, 10 Version 1607 for 32-bit Systems, 10 Version 1607 for x64-based Systems, 7 for 32-bit Systems Service Pack 1, 7 for x64-based Systems Service Pack 1, 8.1 for 32-bit systems, 8.1 for x64-based systems, RT 8.1; Windows Server: version 1803 (Core Installation), 2019, 2019 (Core installation), 2016, 2016 (Core installation), 2008 for 32-bit Systems Service Pack 2, 2008 for 32-bit Systems Service Pack 2 (Core installation), 2008 for Itanium-Based Systems Service Pack 2, 2008 for x64-based Systems Service Pack 2, 2008 for x64-based Systems Service Pack 2 (Core installation), 2008 R2 for Itanium-Based Systems Service Pack 1, 2008 R2 for x64-based Systems Service Pack 1, 2008 R2 for x64-based Systems Service Pack 1 (Core installation), 2012, 2012 (Core installation), 2012 R2, 2012 R2 (Core installation); Windows 10 Version 1909 for 32-bit Systems: unspecified; Windows 10 Version 1909 for x64-based Systems: unspecified; Windows 10 Version 1909 for ARM64-based Systems: unspecified; Windows Server, version 1909 (Server Core installation): unspecified; Windows 10 Version 1903 for 32-bit Systems: unspecified; Windows 10 Version 1903 for x64-based Systems: unspecified; Windows 10 Version 1903 for ARM64-based Systems: unspecified; Windows Server, version 1903 (Server Core installation): unspecified · 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.
    After
    Windows: 10 Version 1803 for 32-bit Systems, 10 Version 1803 for x64-based Systems, 10 Version 1803 for ARM64-based Systems, 10 Version 1809 for 32-bit Systems, 10 Version 1809 for x64-based Systems, 10 Version 1809 for ARM64-based Systems, 10 Version 1709 for 32-bit Systems, 10 Version 1709 for x64-based Systems, 10 Version 1709 for ARM64-based Systems, 10 for 32-bit Systems, 10 for x64-based Systems, 10 Version 1607 for 32-bit Systems, 10 Version 1607 for x64-based Systems, 7 for 32-bit Systems Service Pack 1, 7 for x64-based Systems Service Pack 1, 8.1 for 32-bit systems, 8.1 for x64-based systems, RT 8.1; Windows Server: version 1803 (Core Installation), 2019, 2019 (Core installation), 2016, 2016 (Core installation), 2008 for 32-bit Systems Service Pack 2, 2008 for 32-bit Systems Service Pack 2 (Core installation), 2008 for Itanium-Based Systems Service Pack 2, 2008 for x64-based Systems Service Pack 2, 2008 for x64-based Systems Service Pack 2 (Core installation), 2008 R2 for Itanium-Based Systems Service Pack 1, 2008 R2 for x64-based Systems Service Pack 1, 2008 R2 for x64-based Systems Service Pack 1 (Core installation), 2012, 2012 (Core installation), 2012 R2, 2012 R2 (Core installation); Windows 10 Version 1909 for 32-bit Systems: unspecified; Windows 10 Version 1909 for x64-based Systems: unspecified; Windows 10 Version 1909 for ARM64-based Systems: unspecified; Windows Server, version 1909 (Server Core installation): unspecified; Windows 10 Version 1903 for 32-bit Systems: unspecified; Windows 10 Version 1903 for x64-based Systems: unspecified; Windows 10 Version 1903 for ARM64-based Systems: unspecified; Windows Server, version 1903 (Server Core installation): unspecified · Fixed: Version Windows 10 of the Microsoft Windows includes a fix for this vulnerability and is available for download here: • https://www.microsoft.com/en-in/software-download/windows10 • Reboot is required
    Schneider Electric CPCERT ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Added to CISA KEV
Fixed release or patch reference recorded
Fixed release recorded from official guidance
ENISA EUVD · EUVD-2020-11916↗Schneider Electric CPCERT security advisory↗CISA KEV record↗CVE authority or vendor 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-2020-1020 · cve.blacktree.nl