CVE-2020-1408

CVE-2020-1408 is a high-severity vulnerability in Microsoft Windows 10 with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-346.

Key facts

• Severity: High (CVSS 3.x base score 8.8)
• CVSS v2: 9.3
• EPSS exploit prediction: 6% (92nd percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-346
• Affected product: Microsoft Windows 10
• Published: 2020-07-14
• Last modified: 2026-06-17

Description

A remote code execution vulnerability exists when the Windows font library improperly handles specially crafted embedded fonts, aka 'Microsoft Graphics Remote Code Execution Vulnerability'.

Frequently asked questions

What is CVE-2020-1408?

A remote code execution vulnerability exists when the Windows font library improperly handles specially crafted embedded fonts, aka 'Microsoft Graphics Remote Code Execution Vulnerability'.

How severe is CVE-2020-1408?

CVE-2020-1408 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-1408 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-1408?

CVE-2020-1408 primarily affects Microsoft Windows 10. In total, 36 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-1408?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-1408 published?

CVE-2020-1408 was published on 2020-07-14 and last updated on 2026-06-17.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1408

Affected products (36)

• cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:x64:*
• cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:x86:*
• cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:x64:*
• cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:x86:*
• cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:arm64:*
• cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:x64:*
• cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:x86:*
• cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:arm64:*
• cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:x64:*
• cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:x86:*
• cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:arm64:*
• cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:x64:*
• cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:x86:*
• cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:arm64:*
• cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:x64:*
• cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:x86:*
• cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:arm64:*
• cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:x64:*
• cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:x86:*
• cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:arm64:*
• cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:x64:*
• cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:x86:*
• cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:x64:*
• cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:x86:*
• cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:x64:*
• cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:x86:*
• cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x64:*
• cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x86:*
• cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2016:1903:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2016:1909:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2016:2004:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*

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