CVE-2021-26876: OpenType Font Parsing Remote Code Execution Vulnerability

Published Mar 9, 2021
·
Updated

OpenType Font Parsing Remote Code Execution Vulnerability

Affected Software

28 affected componentsFixes available
Microsoft Windows 10=20h2
Microsoft Windows 10=1803
Microsoft Windows 10=1809
Microsoft Windows 10=1909
Microsoft Windows 10=2004
Microsoft Windows Server 2016=20h2
Microsoft Windows Server 2016=1909
Microsoft Windows Server 2016=2004
Microsoft Windows Server 2016=2019
Microsoft Windows 10=2004
10.0.19043.867
Microsoft Windows 10=2004
10.0.19043.867
Microsoft Windows Server=1909
10.0.18363.1440
Microsoft Windows 10=20H2
10.0.19043.867
Microsoft Windows 10=2004
10.0.19043.867
Microsoft Windows 10=1909
10.0.18363.1440
Microsoft Windows 10=1909
10.0.18363.1440
Microsoft Windows 10=20H2
10.0.19043.867
Microsoft Windows Server=20H2
10.0.19043.867
Microsoft Windows Server=2004
10.0.19043.867
Microsoft Windows 10=1803
10.0.17134.2087
Microsoft Windows 10=1803
10.0.17134.2087
Microsoft Windows Server 2019<10.0.17763.1817
10.0.17763.1817
Microsoft Windows 10=1803
10.0.17134.2087
Microsoft Windows 10=1809
10.0.17763.1817
Microsoft Windows Server 2019<10.0.17763.1817
10.0.17763.1817
Microsoft Windows 10=1809
10.0.17763.1817
Microsoft Windows 10=1809
10.0.17763.1817
Microsoft Windows 10=1909
10.0.18363.1440

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.18363.1440Patch KB5000808
  2. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.19043.867Patch KB5000802
  3. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.17134.2087Patch KB5000809
  4. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.17763.1817Patch KB5000822

Event History

Mar 9, 2021
CVE Published
via Microsoft·04:00 PM
Data Sourced
via Microsoft·04:00 PM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·04:00 PM
Affected Software
Updated
via Microsoft·04:00 PM
Description
Mar 11, 2021
CVE Published
via MITRE·03:39 PM
Data Sourced
via MITRE·03:39 PM
DescriptionSeverity
Data Sourced
via NVD·04:15 PM
RemedyDescriptionSeverityAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2021-26876?

CVE-2021-26876 is rated as critical due to its potential for remote code execution.

2

How do I fix CVE-2021-26876?

To fix CVE-2021-26876, apply the latest security updates provided by Microsoft for affected Windows versions.

3

What are the affected products for CVE-2021-26876?

CVE-2021-26876 affects multiple versions of Microsoft Windows 10 and Windows Server 2016.

4

Can CVE-2021-26876 be exploited without user interaction?

Yes, CVE-2021-26876 can potentially be exploited without user interaction through malicious OpenType fonts.

5

What is the impact of CVE-2021-26876 on systems?

The impact of CVE-2021-26876 includes the possibility of an attacker executing arbitrary code on an affected system.

Contact

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