How severe is CVE-2024-20671?

CVE-2024-20671 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2024-20671 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-20671?

CVE-2024-20671 affects Microsoft Windows Defender Antimalware Platform. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-20671?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-20671 have an EU (EUVD) identifier?

Yes. CVE-2024-20671 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-18386.

When was CVE-2024-20671 published?

CVE-2024-20671 was published on 2024-03-12 and last updated on 2026-06-17.

CVE-2024-20671

CVE-2024-20671 is a medium-severity vulnerability in Microsoft Windows Defender Antimalware Platform with a CVSS 3.x base score of 5.5. 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-276.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-18386
Weakness: CWE-276
Affected product: Microsoft Windows Defender Antimalware Platform
Published: 2024-03-12
Last modified: 2026-06-17

Description

Microsoft Defender Security Feature Bypass Vulnerability

Frequently asked questions

What is CVE-2024-20671?: Microsoft Defender Security Feature Bypass Vulnerability
How severe is CVE-2024-20671?: CVE-2024-20671 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2024-20671 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-20671?: CVE-2024-20671 affects Microsoft Windows Defender Antimalware Platform. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-20671?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-20671 have an EU (EUVD) identifier?: Yes. CVE-2024-20671 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-18386.
When was CVE-2024-20671 published?: CVE-2024-20671 was published on 2024-03-12 and last updated on 2026-06-17.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-20671

Affected products (1)

cpe:2.3:a:microsoft:windows_defender_antimalware_platform:*:*:*:*:*:*:*:*

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