What is CVE-2021-34471?

CVE-2021-34471 is a high-severity vulnerability in Microsoft Malware_protection_engine, classified under Improper Privilege Management. CVSS score: 7.8/10. Published 2021-08-12.

How severe is CVE-2021-34471?

High severity. CVSS v3 base score is 7.8 out of 10.

Privilege escalation in Microsoft Malware_protection_engine

CVE-2021-34471

Microsoft Windows Defender Elevation of Privilege Vulnerability

Vulnerability class: Privilege Escalation

EPSS: 0.004 (35.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Microsoft Malware_protection_engine
Microsoft Malware Protection Engine — versions N/A

Weakness classification (CWE)

CWE-269 — Improper Privilege Management

References

secure@microsoft.com (Patch, x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-34471?: CVE-2021-34471 is a high-severity vulnerability in Microsoft Malware_protection_engine, classified under Improper Privilege Management. CVSS score: 7.8/10. Published 2021-08-12.
How severe is CVE-2021-34471?: High severity. CVSS v3 base score is 7.8 out of 10.