Microsoft Defender for Endpoint Security Feature Bypass Vulnerability
Priority LOW 35Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from Microsoft.
Summary
Microsoft Defender for Endpoint Security Feature Bypass Vulnerability
Why it matters now
EPSS 0.00603 49th percentileScored 2026-11-07
Fix Fixed Microsoft Defender Security Intelligence Updates (Microsoft): 1.379.200.0
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Microsoft | Microsoft Defender Security Intelligence Updates | 1.0.0 to before 1.379.200.0 | 1.379.200.0 | Patch available | CNA |
- Microsoft Defender Security Intelligence Updates VendorMicrosoft Affected 1.0.0 to before 1.379.200.0 Fixed in 1.379.200.0 Patch available CNA
Remediation
- Fix · CNA Microsoft Defender Security Intelligence Updates (Microsoft) Fixed in 1.379.200.0
Vendor assessments
Microsoft
Microsoft's page for this CVE →
- Impact
- Security Feature Bypass
- Exploited
- No
- Publicly disclosed
- No
- Exploitability
- Exploitation Less Likely
| Product | Status | Plan or fix |
|---|---|---|
| Microsoft Defender Security Intelligence Updates | Fixed | 1.379.200.0 · Security Update |
Timeline
- 2026-10-02 Threatist record created from CVE-2023-21809
- 2026-10-03 Alias added: GHSA-fvfp-w3v3-v2cp
Sources
- CVE-2023-21809 · CVE Program
- CVE-2023-21809 · NVD
- FIRST EPSS
- GHSA-fvfp-w3v3-v2cp · GitHub Advisory Database · CC BY 4.0
- CVE-2023-21809 · Microsoft Security Update Guide
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences