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TI-2020-00808 Aliases CVE-2020-0835GHSA-fj83-7fq4-4858

An elevation of privilege vulnerability exists when Windows Defender antimalware platform…

Priority LOW 36Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

An elevation of privilege vulnerability exists when Windows Defender antimalware platform improperly handles hard links, aka 'Windows Defender Antimalware Platform Hard Link Elevation of Privilege Vulnerability'.

Why it matters now

EPSS 0.00914 60th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftWindows Defender antimalware platformall versions—No fix listedCNA
  • Windows Defender antimalware platform VendorMicrosoft Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:windows_defender:-:*:*:*:*:*:*:*not specified by NVDVulnerableMicrosoft
  • cpe:2.3:a:microsoft:windows_defender:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-0835
  2. 2026-10-03 Alias added: GHSA-fj83-7fq4-4858

References

Patch 1

  • TI-2021-01364 Microsoft Defender Remote Code Execution Vulnerability KEVCVSS 3.1HIGH 7.8
  • TI-2017-06074 Out-of-bounds write in Microsoft Malware Protection Engine KEVCVSS 3.1HIGH 7.8
  • TI-2017-00265 Memory corruption in Microsoft Malware Protection Engine CVSS 3.0HIGH 7.8
  • TI-2018-00915 Out-of-bounds write in Microsoft Windows Defender CVSS 3.1HIGH 8.8
  • TI-2017-06072 Memory corruption in Microsoft Malware Protection Engine CVSS 3.0HIGH 7.8
  • TI-2017-06075 Memory corruption in Microsoft Malware Protection Engine CVSS 3.0HIGH 7.8
See all 27 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences